Grade 4 Mathematics — Term 1, Week 11

5 day-plan(s) · WeLearn Math

Grade 4 Mathematics · Term 1, Week 11 · 60 minutes

Objectives	Students will be able to: (1) understand percent as "out of 100"; (2) convert fractions to percentages; (3) find 10% and 50% of amounts.
Materials	100-square grids, coloured pencils, worksheets.
Key vocabulary	percent, out of 100, fraction, decimal
Engage (starter)	(10 min) "Percent means out of 100. 50% means 50 out of 100 - half!"
Develop (main)	(35 min) 1. Shade 100-square to show percent. 2. Convert 1/4 to 25% (x25/x25). 3. Find 10% by dividing by 10, 50% by halving. 4. Practice. 5. Worksheet.
Plenary (close)	(10 min) Quick quiz: "What is 10% of 200?"
Assessment	Correct conversion and calculation.
Teacher notes	Use familiar fractions.

Grade 4 Mathematics · Term 1, Week 11 · 60 minutes

Objectives	Students will be able to: (1) find 25%, 75%, 20% etc. of amounts; (2) use the 10% method to build other percents; (3) solve word problems.
Materials	Whiteboards, calculators (optional), word problems.
Key vocabulary	percentage, discount, sale, tax (simple)
Engage (starter)	(10 min) "How to find 20% of 50? Find 10% = 5, then double it = 10."
Develop (main)	(35 min) 1. Practice 10% strategy. 2. Then 5% (half of 10%). 3. Build any percent. 4. Shopping problems: "30% off $80". 5. Worksheet.
Plenary (close)	(10 min) Shopping game: calculate discounts.
Assessment	Correct percentage calculations.
Teacher notes	Practical life skill.

Grade 4 Mathematics · Term 1, Week 11 · 60 minutes

Objectives	Students will be able to: (1) understand ratio as "for every"; (2) write ratios (2:1); (3) solve simple ratio problems.
Materials	Counters, coloured tiles, recipe cards.
Key vocabulary	ratio, for every, proportion, part
Engage (starter)	(10 min) "A recipe says 2 cups flour to 1 cup sugar. That's a ratio - 2:1."
Develop (main)	(35 min) 1. Use tiles to show ratios. 2. Write and read ratios. 3. Share counters in given ratio. 4. Word problems: "Mix paint 3:1, how much white with 6 L blue?" 5. Worksheet.
Plenary (close)	(10 min) Quick quiz: "A ratio of boys to girls is 4:3. If there are 12 boys, how many girls?"
Assessment	Correct ratio representation and solving.
Teacher notes	Foundation for proportions.

Grade 4 Mathematics · Term 1, Week 11 · 60 minutes

Objectives	Students will be able to: (1) solve x + 5 = 12, 3x = 15; (2) use inverse operations; (3) check solutions.
Materials	Balance scale model, whiteboards, equation cards.
Key vocabulary	equation, variable, inverse, solve, check
Engage (starter)	(10 min) "I'm thinking of a number. I add 5 and get 12. What's my number? That's an equation: x + 5 = 12."
Develop (main)	(35 min) 1. Use balance scale imagery. 2. Solve addition/subtraction equations. 3. Multiplication/division equations. 4. Practice. 5. Worksheet.
Plenary (close)	(10 min) Partner quiz: create an equation, partner solves.
Assessment	Correct solution and checking.
Teacher notes	Pre-algebra.

Grade 4 Mathematics · Term 1, Week 11 · 60 minutes

Objectives	Students will be able to: (1) review new concepts; (2) complete a mixed practice sheet; (3) play a "Find Someone Who" activity.
Materials	Practice sheet, "Find Someone Who" cards.
Key vocabulary	review
Engage (starter)	(10 min) Quick mental: "30% of 200? Solve x - 7 = 10."
Develop (main)	(35 min) 1. Mixed practice. 2. Self-check. 3. "Find Someone Who": walk around, solve problems together. 4. Discuss difficult questions. 5. Write a tip.
Plenary (close)	(10 min) Share tips.
Assessment	Practice sheet score.
Teacher notes	Peer learning.