#!/usr/bin/env python3 """ Week 3: Comparing & Ordering Numbers Phase 1: Number Sense & Operations Curriculum: Comparing numbers using >, <, =; ordering numbers; number line position Standard: 2.NBT.A.4 — Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits. New Standard (7 principles): 1. Reduced drill (4-6 problems per section, "reduced from" noted) 2. Estimation before calculating (more/less than benchmark — Tue, Fri) 3. Multiple strategies (show two ways to compare — Mon, Wed) 4. Better word problems (reasoning over keywords — Wed, Thu, Fri) 5. Create Your Own open-ended challenge (Wed, Thu) 6. Number Talks — explain WITHOUT calculating (Mon, Thu) 7. Friday self-check with emoji + "One thing I learned" """ import os import glob from weasyprint import HTML from math_helpers import ( CSS, TEACHER_CSS, page, page_multi, hdr, sec, b, bw, bl, tg_page_multi, tg_sec, tg_note, tg_section_title, ) BASE = os.path.expanduser("~/Home_School/2nd_Grade/Math") WEEK = os.path.join(BASE, "Week_3") # ═══════════════════════════════════════════════════ # MONDAY — Comparing Numbers with <, >, = # ═══════════════════════════════════════════════════ def monday(): # 1: Fluency warmup — which is bigger? s1 = '

'\ '

2-min Fluency Warm-up — Which number is bigger?

'\ '

' for a, c in [(14, 19), (27, 23), (8, 31), (45, 45)]: s1 += f'

{a} __ {c}

Write > < or =

' s1 += '

' # 2: Comparing with place value reasoning s2 = '

Look at the tens first. If tens are the same, look at the ones.

'\ '

' comparisons = [ (34, 43, "4 tens > 3 tens, so 43 is bigger"), (56, 52, "Same tens (5), 6 ones > 2 ones, so 56 is bigger"), (71, 17, "7 tens > 1 ten, so 71 is bigger"), (89, 98, "9 tens > 8 tens, so 98 is bigger"), ] for a, c, _ in comparisons: s2 += f'

{a} {b("2em")} {c}

'\ f'

Why: {bw()}

' s2 += '

' # 3: Alligator mouth — visual comparison (reduced from 8 to 4) s3 = '

The alligator always eats the bigger number! Draw > or < between each pair.

'\ '

' for a, c in [(62, 26), (48, 51), (33, 33), (90, 9)]: s3 += f'

{a} 🐊 {c}

'\ f'

{a} {b("2em")} {c}

' s3 += '

' # 4: Number Talk — explain WITHOUT calculating s4 = '

'\ '

Number Talk — Explain WITHOUT writing the answer.

'\ '

' s4 += '

Is 57 bigger than 52?

My thinking: ' + bw() + '

' s4 += '

Is 4 tens and 8 ones bigger than 5 tens?

My thinking: ' + bw() + '

' s4 += '

' # 5: Challenge — show two ways to compare s5 = '

'\ '

Challenge — Show two different ways to prove which is bigger.

'\ '

Try: (1) look at place value, (2) use a number line, or (3) count on.

'\ '

68 vs 72

'\ '

Way 1 (place value): ' + bw() + '

'\ '

Way 2 (number line): ' + bw() + '

'\ '

' return page(3, "Monday", "Comparing Numbers", f'''{sec(1, "Warm-up: Which is Bigger?", s1)} {sec(2, "Compare with Place Value", s2)} {sec(3, "Alligator Mouth!", s3)} {sec(4, "Number Talk: Explain Without Writing", s4)} {sec(5, "Challenge: Show Two Ways", s5)}''') # ═══════════════════════════════════════════════════ # TUESDAY — Ordering Numbers (Least to Greatest) # ═══════════════════════════════════════════════════ def tuesday(): # 1: Fluency warmup — number order s1 = '

'\ '

2-min Fluency Warm-up — Put in order from LEAST to GREATEST.

'\ '

' sets = [ [12, 25, 8], [43, 34, 53], ] for i, nums in enumerate(sets): s1 += f'

{", ".join(map(str, nums))}

'\ f'

{b("6em")}, {b("6em")}, {b("6em")}

' s1 += '

' # 2: Ordering sets of 4 (reduced from 6 to 4) s2 = '

Look at the tens first! Then the ones. Order from LEAST to GREATEST.

'\ '

' sets = [ [34, 43, 33, 44], [57, 75, 56, 65], [29, 92, 22, 20], [81, 18, 80, 10], ] for nums in sets: boxes = ', '.join([b('4em') for _ in nums]) s2 += f'

{", ".join(map(str, nums))}

'\ f'

{boxes}

' s2 += '

' # 3: Estimate First — bigger or smaller than 50? s3 = '

'\ '

Estimate First! BEFORE ordering, circle each number: is it MORE or LESS than 50?

'\ '

Now put them in order: {", ".join(map(str, [38, 62, 47, 55, 71]))}

'\ '

' + ', '.join([b('4em') for _ in range(5)]) + '

' # 4: Number line ordering s4 = '

Draw a number line from 0 to 100. Plot each number, then write them in order.

'\ '

Numbers: 23, 67, 45, 12, 89

'\ '

' + ', '.join([b('4em') for _ in range(5)]) + '

' # 5: Missing numbers in a sequence s5 = '

Fill in the missing numbers to complete the sequence.

'\ '

' sequences = [ ["10", "15", b("3em"), "25", "30"], ["50", b("3em"), "55", b("3em"), "60"], ["22", "24", b("3em"), "28", "30"], [b("3em"), "41", "43", b("3em"), "47"], ] for seq in sequences: s5 += f'

{", ".join(seq)}

' s5 += '

' return page(3, "Tuesday", "Ordering Numbers", f'''{sec(1, "Warm-up: Put in Order", s1)} {sec(2, "Order Sets of 4", s2)} {sec(3, "Estimate First: More or Less Than 50?", s3)} {sec(4, "Number Line Ordering", s4)} {sec(5, "Fill in the Missing Numbers", s5)}''') # ═══════════════════════════════════════════════════ # WEDNESDAY — Comparing Word Problems # ═══════════════════════════════════════════════════ def wednesday(): # 1: Fluency warmup — quick compare s1 = '

'\ '

2-min Fluency Warm-up — Write >, <, or =

'\ '

' for a, c in [(15, 51), (72, 72), (39, 93), (86, 68)]: s1 += f'

{a} {b("2em")} {c}

' s1 += '

' # 2: Comparison word problems — reasoning about situations s2 = '

'\ '

Read carefully. Think about what is happening. Who or what has more? Explain why.

'\ '

' problems = [ ("Tom has 43 marbles. Sara has 34 marbles. Who has more? How many more?", ""), ("The blue ribbon is 68 cm long. The red ribbon is 86 cm long. Which ribbon is longer? By how much?", ""), ] for text, _ in problems: s2 += f'

{text}

'\ '

My thinking: ' + bw() + '

'\ '

' + bl() + '

' s2 += '

' # 3: Three-way comparison s3 = '

Compare all three numbers. Circle the greatest, put a box around the least, and put a star by the one in the middle.

'\ '

' groups = [ [54, 45, 55], [73, 37, 73], ] for nums in groups: s3 += f'

{nums[0]} | {nums[1]} | {nums[2]}

'\ '

Greatest: {b("4em")} | Middle: {b("4em")} | Least: {b("4em")}

' s3 += '

' # 4: Find the error s4 = '

'\ '

Someone says "29 is bigger than 31 because 9 is bigger than 1." Is that person right? Explain.

'\ '

Right or Wrong? {b("4em")}

'\ '

My explanation: ' + bw() + '

'\ '

The correct comparison: ' + b('8em') + '

' # 5: Challenge — Create your own comparison problem s5 = '

'\ '

Create Your Own

'\ '

Write a word problem that compares two numbers. Include a trick that might confuse someone (like the 29 vs 31 example). Then solve it.

'\ '

My solution: ' + bw() + '

'\ '

' return page(3, "Wednesday", "Comparing Word Problems", f'''{sec(1, "Warm-up: Quick Compare", s1)} {sec(2, "Word Problems: Who Has More?", s2)} {sec(3, "Three-Way Comparison", s3)} {sec(4, "Find the Error", s4)} {sec(5, "Challenge: Create Your Own", s5)}''') # ═══════════════════════════════════════════════════ # THURSDAY — Place Value & Comparing # ═══════════════════════════════════════════════════ def thursday(): # 1: Fluency warmup — compare using place value s1 = '

'\ '

2-min Fluency Warm-up — Compare: >, <, or =

'\ '

' for a, c in [(63, 36), (47, 57), (90, 9), (82, 82)]: s1 += f'

{a} {b("2em")} {c}

' s1 += '

' # 2: Build the biggest/smallest number s2 = '

Use these digits to make the biggest and smallest two-digit numbers. You can use each digit only once per number.

'\ '

' digit_sets = [ [3, 7], [5, 1, 8], [4, 9, 2], [6, 0], ] for digits in digit_sets: s2 += f'

Digits: {", ".join(map(str, digits))}

'\ '

Biggest: ' + b("4em") + '

'\ '

Smallest: ' + b("4em") + '

' s2 += '

' # 3: Mystery number — ordering clues s3 = '

Read the clues. What number am I thinking of?

'\ '

Clue 1: I am between 40 and 50.

'\ '

Clue 2: My tens digit is 4.

'\ '

Clue 3: My ones digit is bigger than 6.

'\ '

Clue 4: I am an even number.

'\ '

My thinking: ' + bw() + '

'\ '

My number is: ' + b("4em") + '

' # 4: Number Talk — compare WITHOUT calculating s4 = '

'\ '

Number Talk — Explain WITHOUT writing the numbers.

'\ '

' s4 += '

Is "6 tens and 3 ones" bigger than "3 tens and 6 ones"?

My thinking: ' + bw() + '

' s4 += '

Is 59 closer to 50 or 60? How do you know?

My thinking: ' + bw() + '

' s4 += '

' # 5: Create your own mystery number s5 = '

'\ '

Create Your Own Mystery Number

'\ '

Think of a number. Write 3 clues about it (use comparison words like "bigger than," "less than," "between"). A classmate tries to guess!

'\ '

My secret number: _____ (don\'t show anyone!)

'\ '

Clue 1: ' + bl() + '

'\ '

Clue 2: ' + bl() + '

'\ '

Clue 3: ' + bl() + '

'\ '

' return page(3, "Thursday", "Place Value & Comparing", f'''{sec(1, "Warm-up: Compare with Place Value", s1)} {sec(2, "Build the Biggest and Smallest", s2)} {sec(3, "Mystery Number Clues", s3)} {sec(4, "Number Talk: Compare Without Writing", s4)} {sec(5, "Challenge: Create Your Own Mystery", s5)}''') # ═══════════════════════════════════════════════════ # FRIDAY — Review & Self-Check # ═══════════════════════════════════════════════════ def friday(): # 1: Fluency warmup — rapid compare s1 = '

'\ '

2-min Fluency Warm-up — Go fast! Write >, <, or =

'\ '

' for a, c in [(38, 83), (71, 17), (44, 44), (95, 59)]: s1 += f'

{a} {b("2em")} {c}

' s1 += '

' # 2: Estimate First — bigger or smaller than 50? s2 = '

'\ '

Estimate First! Circle: is it MORE or LESS than 50? Then compare the pair.

'\ '

' for a, c in [(47, 53), (61, 39), (50, 50), (48, 52)]: s2 += f'

{a} vs {c}

'\ f'

{a}: more than 50 / less than 50

'\ f'

{c}: more than 50 / less than 50

'\ f'

{a} {b("2em")} {c}

' s2 += '

' # 3: Ordering review (reduced from 10 to 6 problems total) s3 = '

Order from LEAST to GREATEST.

'\ '

' sets = [ [18, 81, 10, 80], [56, 65, 55, 66], ] for nums in sets: boxes = ', '.join([b('4em') for _ in nums]) s3 += f'

{", ".join(map(str, nums))}

'\ f'

{boxes}

' s3 += '

' # 4: Word problem review s4 = '

'\ '

Read carefully. Show your work.

'\ '

' problems = [ ("Jake scored 78 points in a game. Emma scored 87 points. Who scored more? By how many?", ""), ("There were 45 students on Monday and 54 students on Tuesday. Which day had more students? How many more?", ""), ] for text, _ in problems: s4 += f'

{text}

'\ '

My thinking: ' + bw() + '

'\ '

' + bl() + '

' s4 += '

' # 5: Mixed comparison s5a = '

Fill in >, <, or = for each pair.

'\ '

' pairs = [(32, 23), (67, 76), (50, 50), (91, 19), (48, 84), (10, 100)] for a, c in pairs: s5a += f'

{a} {b("2em")} {c}

' s5a += '

' # 6: Self-check with emoji reflection s5b = '

'\ '

Self-Check: How do you feel about comparing and ordering numbers?

'\ '

Comparing with > < =

'\ '

😊 I got it! | 😐 Getting there | 😟 Need help

'\ '

Ordering Least to Greatest

'\ '

😊 I got it! | 😐 Getting there | 😟 Need help

'\ '

Place Value Comparing

'\ '

😊 I got it! | 😐 Getting there | 😟 Need help

'\ '

One thing I learned this week: ' + bl() + '

'\ '

One thing I want to practice more: ' + bl() + '

'\ '

My trick for remembering which way the alligator faces: ' + bl() + '

'\ '

' return page(3, "Friday", "Week 3 Review & Self-Check", f'''{sec(1, "Warm-up: Rapid Compare", s1)} {sec(2, "Estimate First: More or Less Than 50?", s2)} {sec(3, "Ordering Review", s3)} {sec(4, "Word Problems", s4)} {sec(5, "Mixed Comparison", s5a)} {sec(6, "Self-Check & Reflection", s5b)}''') # ═══════════════════════════════════════════════════ # TEACHER GUIDE — Combined for all days # ═══════════════════════════════════════════════════ def teacher_guide(): """Generate combined teacher guide for all 5 days.""" return tg_page_multi( "Week 3", "Comparing & Ordering Numbers — Teacher Guide", # Monday tg_section_title("Monday: Comparing Numbers with <, >, =") + tg_sec(1, "Warm-up", ["> (19>14), < (23<27), < (8<31), = (45=45)"]) + tg_sec(2, "Place Value Compare", [ "34 < 43 (4 tens > 3 tens)", "56 > 52 (same tens, 6 ones > 2 ones)", "71 > 17 (7 tens > 1 ten)", "89 < 98 (9 tens > 8 tens)", ]) + tg_sec(3, "Alligator", [ "62 > 26, 48 < 51, 33 = 33, 90 > 9", ]) + tg_sec(4, "Number Talk", [ "Yes, 57 > 52 (same tens, 7 ones > 2 ones)", "No, 4 tens + 8 ones = 48, which is less than 5 tens = 50", ]) + tg_sec(5, "Challenge", [ "72 > 68 (7 tens > 6 tens; also 72 is to the right of 68 on number line)", ]) + tg_note("Page break"), # Tuesday tg_section_title("Tuesday: Ordering Numbers") + tg_sec(1, "Warm-up", [ "8, 12, 25 | 34, 43, 53", ]) + tg_sec(2, "Order Sets of 4", [ "33, 34, 43, 44 | 56, 57, 65, 75 | 20, 22, 29, 92 | 10, 18, 80, 81", ]) + tg_sec(3, "Estimate First", [ "38<50, 62>50, 47<50, 55>50, 71>50 | Order: 38, 47, 50, 55, 62, 71", ]) + tg_sec(4, "Number Line", [ "Order: 12, 23, 45, 67, 89", ]) + tg_sec(5, "Missing Numbers", [ "10, 15, 20, 25, 30 | 50, 52, 55, 57, 60 | 22, 24, 26, 28, 30 | 39, 41, 43, 45, 47", ]) + tg_note("Page break"), # Wednesday tg_section_title("Wednesday: Comparing Word Problems") + tg_sec(1, "Warm-up", [ "15 < 51, 72 = 72, 39 < 93, 86 > 68", ]) + tg_sec(2, "Word Problems", [ "Tom has more (43 > 34). 43 - 34 = 9 more marbles", "Red ribbon is longer (86 > 68). 86 - 68 = 18 cm longer", ]) + tg_sec(3, "Three-Way", [ "55 greatest, 54 middle, 45 least | 73 greatest (tie), 73 middle, 37 least", ]) + tg_sec(4, "Find the Error", [ "WRONG — you look at tens first. 3 tens > 2 tens, so 31 > 29", ]) + tg_sec(5, "Create Own", [ "Accept student-created comparison problems with tricky elements", ]) + tg_note("Page break"), # Thursday tg_section_title("Thursday: Place Value & Comparing") + tg_sec(1, "Warm-up", [ "63 > 36, 47 < 57, 90 > 9, 82 = 82", ]) + tg_sec(2, "Biggest/Smallest", [ "3,7 → biggest 73, smallest 37 | 5,1,8 → biggest 851, smallest 158", "4,9,2 → biggest 942, smallest 249 | 6,0 → biggest 60, smallest 06(6)", ]) + tg_sec(3, "Mystery Number", [ "Between 40-50, tens=4, ones>6, even → 48", ]) + tg_sec(4, "Number Talk", [ "Yes — 6 tens + 3 ones = 63 > 3 tens + 6 ones = 36 (more tens)", "59 is closer to 60 (only 1 away vs 9 away from 50)", ]) + tg_sec(5, "Create Mystery", [ "Accept student-created mystery number riddles", ]) + tg_note("Page break"), # Friday tg_section_title("Friday: Review & Self-Check") + tg_sec(1, "Warm-up", [ "38 < 83, 71 > 17, 44 = 44, 95 > 59", ]) + tg_sec(2, "Estimate First", [ "47<50, 53>50, 47<53 | 61>50, 39<50, 61>39 | 50=50, 50=50 | 48<50, 52>50, 48<52", ]) + tg_sec(3, "Ordering Review", [ "10, 18, 80, 81 | 55, 56, 65, 66", ]) + tg_sec(4, "Word Problems", [ "Emma scored more (87 > 78). 87 - 78 = 9 more points", "Tuesday had more (54 > 45). 54 - 45 = 9 more students", ]) + tg_sec(5, "Mixed Comparison", [ "32 > 23, 67 < 76, 50 = 50, 91 > 19, 48 < 84, 10 < 100", ]) + tg_sec(6, "Self-Check", [ "Accept student self-assessment and reflection", ]), ) # ═══════════════════════════════════════════════════ # GENERATE # ═══════════════════════════════════════════════════ if __name__ == "__main__": os.makedirs(WEEK, exist_ok=True) for f in glob.glob(os.path.join(WEEK, "*.pdf")): os.remove(f) for f in glob.glob(os.path.join(WEEK, "*.html")): os.remove(f) days = [ (monday, "Monday", "Comparing Numbers"), (tuesday, "Tuesday", "Ordering Numbers"), (wednesday, "Wednesday", "Comparing Word Problems"), (thursday, "Thursday", "Place Value & Comparing"), (friday, "Friday", "Week 3 Review & Self-Check"), ] for lesson_func, day, title in days: html = lesson_func() fname = f"Week_3_{day}" path = os.path.join(WEEK, f"{fname}.html") with open(path, "w") as f: f.write(html) pdf_path = os.path.join(WEEK, f"{fname}.pdf") HTML(filename=path).write_pdf(pdf_path) print(f"Generated: {pdf_path}") html = teacher_guide() path = os.path.join(WEEK, "Week_3_Teacher_Guide.html") with open(path, "w") as f: f.write(html) pdf_path = os.path.join(WEEK, "Week_3_Teacher_Guide.pdf") HTML(filename=path).write_pdf(pdf_path) print(f"Generated: {pdf_path}") print("\nWeek 3 (Comparing & Ordering Numbers) complete!")