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Math 9th Grade Ages 14–15
Modelling with linear functions — Take-Home — 9th Grade Builds a linear model from a real situation and interprets both parameters and the prediction. This one-page 9th Grade take-home carries the two-minute check that tells you whether the skill is wobbly, then "Model Something Real" — 30 minutes with something measurable over time: a candle, a phone…
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Modelling with linear functions MATH · 9TH GRADE Name Date TAKE-HOME PRACTICE Math · 9th Grade 30 minutes WHAT THIS BUILDS Builds a linear model from a real situation and interprets both parameters and the prediction. 1 THE TWO-MINUTE CHECK ASK "A tank has 200 L, draining 5 L/min. Write the model. When is it empty? Is 60 minutes sensible?" A SOLID ANSWER y = 200 − 5x, 40 minutes, and 60 rejected as impossible. Not yet Getting there Solid 2 MODEL SOMETHING REAL You need: Something measurable over time: a candle, a phone battery, water draining Measure at regular intervals and record the data. Plot it and decide whether a linear model fits. Find the equation from two points and state what each parameter means. Predict a future value, then wait and check it. Discuss where the model stops being valid and why. SAY THIS WHEN IT STALLS "What does the −5 mean, in tank language? And when does this model stop making sense?" Given data that's exactly linear, find and interpret the equation. Data that's nearly linear — fit a line, discuss residuals, and quantify the error. IF IT'S TOO HARD IF IT'S TOO EASY Did it M T W T F Full year of take-homes: www.littleactivity.com/takehome/grade-9 www.littleactivity.com 9th Grade · Math
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Modelling with linear functions MATH · 9TH GRADE Name Date TAKE-HOME PRACTICE Math · 9th Grade 30 minutes WHAT THIS BUILDS Builds a linear model from a real situation and interprets both parameters and the prediction. 1 THE TWO-MINUTE CHECK ASK "A tank has 200 L, draining 5 L/min. Write the model. When is it empty? Is 60 minutes sensible?" A SOLID ANSWER y = 200 − 5x, 40 minutes, and 60 rejected as impossible. Not yet Getting there Solid 2 MODEL SOMETHING REAL You need: Something measurable over time: a candle, a phone battery, water draining Measure at regular intervals and record the data. Plot it and decide whether a linear model fits. Find the equation from two points and state what each parameter means. Predict a future value, then wait and check it. Discuss where the model stops being valid and why. SAY THIS WHEN IT STALLS "What does the −5 mean, in tank language? And when does this model stop making sense?" Given data that's exactly linear, find and interpret the equation. Data that's nearly linear — fit a line, discuss residuals, and quantify the error. IF IT'S TOO HARD IF IT'S TOO EASY Did it M T W T F Full year of take-homes: www.littleactivity.com/takehome/grade-9 www.littleactivity.com 9th Grade · Math
Write Numbers — 0 to 5 MATH · KINDERGARTEN Name Date Write the numeral for each number word. five = 5 1. two = ____ 2. one = ____ 3. three = ____ 4. zero = ____ 5. four = ____ 6. five = ____ www.littleactivity.com Kindergarten · Math
Write Numbers — 6 to 10 MATH · KINDERGARTEN Name Date Write the numeral for each number word. ten = 10 1. seven = ____ 2. six = ____ 3. eight = ____ 4. nine = ____ 5. ten = ____ www.littleactivity.com Kindergarten · Math
Write Numbers — 11 to 15 MATH · KINDERGARTEN Name Date Write the numeral for each number word. fifteen = 15 1. fifteen = ____ 2. twelve = ____ 3. fourteen = ____ 4. thirteen = ____ 5. eleven = ____ www.littleactivity.com Kindergarten · Math
Write Numbers — 16 to 20 MATH · KINDERGARTEN Name Date Write the numeral for each number word. twenty = 20 1. seventeen = ____ 2. twenty = ____ 3. eighteen = ____ 4. sixteen = ____ 5. nineteen = ____ 6. 16 + 1 = ____ 7. 8 + 10 = ____ 8. 2 + 14 = ____ 9. 16 + 2 = ____ 10. 14 + 4 = ____ 11. 11 + 3 = ____ 12. 18 + 1 = ____ www.littleactivity.com Kindergarten · Math
Compare Groups — More or Fewer MATH · KINDERGARTEN Name Date Count both groups. Write more, fewer or the same in the circle. 8 stars ◯ 5 hearts → more 1. 11 shells ◯ 1 apples 2. 3 apples ◯ 8 stars 3. 11 hearts ◯ 3 circles 4. 8 shells ◯ 5 buttons 5. 4 squares ◯ 5 apples 6. 7 leaves ◯ 7 leaves 7. 11 squares ◯ 4 hearts 8. 5 squares ◯ 12 hearts 9. 11 hearts ◯ 10 circles 10. 11 squares ◯ 11 buttons 11. 2 circles ◯ 1 circles 12. 8 squares ◯ 12 stars www.littleactivity.com Kindergarten · Math
Compare Groups — Which Has More MATH · KINDERGARTEN Name Date Count both groups. Write more, fewer or the same in the circle. 8 stars ◯ 5 hearts → more 1. 3 buttons ◯ 9 apples 2. 12 hearts ◯ 2 circles 3. 12 hearts ◯ 12 hearts 4. 10 buttons ◯ 1 stars 5. 8 hearts ◯ 2 circles 6. 6 hearts ◯ 10 apples 7. 9 stars ◯ 7 shells 8. 6 apples ◯ 1 hearts 9. 11 stars ◯ 8 apples 10. 10 squares ◯ 11 leaves 11. 4 hearts ◯ 4 apples 12. 10 apples ◯ 3 stars www.littleactivity.com Kindergarten · Math
