Grade 1 Mathematics Weeks 13–14: Teacher Guide and Keys
Use concrete objects before drawings and equations. Discuss strategies, then assign independent practice. Record misconceptions privately.
Day 61: Length with same-size units
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: A ribbon is 10 cubes long and another is 7 cubes long. How many cubes longer is the first? Answer: 3.
Practice 2: A ribbon is 11 cubes long and another is 8 cubes long. How many cubes longer is the first? Answer: 3.
Practice 3: A ribbon is 12 cubes long and another is 9 cubes long. How many cubes longer is the first? Answer: 3.
Practice 4: A ribbon is 13 cubes long and another is 10 cubes long. How many cubes longer is the first? Answer: 3.
Guided answer: 3. Model answer: 3. Check whether the learner can represent the answer concretely and explain it.
Day 62: Compare lengths
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: A ribbon is 13 cubes long and another is 9 cubes long. How many cubes longer is the first? Answer: 4.
Practice 2: A ribbon is 14 cubes long and another is 10 cubes long. How many cubes longer is the first? Answer: 4.
Practice 3: A ribbon is 15 cubes long and another is 11 cubes long. How many cubes longer is the first? Answer: 4.
Practice 4: A ribbon is 16 cubes long and another is 12 cubes long. How many cubes longer is the first? Answer: 4.
Guided answer: 4. Model answer: 4. Check whether the learner can represent the answer concretely and explain it.
Day 63: Time to hour
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: The clock shows 5:00. Write the time in words. Answer: 5 o’clock.
Practice 2: The clock shows 6:00. Write the time in words. Answer: 6 o’clock.
Practice 3: The clock shows 7:00. Write the time in words. Answer: 7 o’clock.
Practice 4: The clock shows 8:00. Write the time in words. Answer: 8 o’clock.
Guided answer: 4 o’clock. Model answer: 3 o’clock. Check whether the learner can represent the answer concretely and explain it.
Day 64: Time to half hour
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: The clock shows 8:30. Write the time in words. Answer: half past 8.
Practice 2: The clock shows 9:30. Write the time in words. Answer: half past 9.
Practice 3: The clock shows 10:30. Write the time in words. Answer: half past 10.
Practice 4: The clock shows 11:30. Write the time in words. Answer: half past 11.
Guided answer: half past 7. Model answer: half past 6. Check whether the learner can represent the answer concretely and explain it.
Day 65: Measurement review
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: A ribbon is 11 cubes long and another is 8 cubes long. How many cubes longer is the first? Answer: 3.
Practice 2: A ribbon is 12 cubes long and another is 9 cubes long. How many cubes longer is the first? Answer: 3.
Practice 3: A ribbon is 13 cubes long and another is 10 cubes long. How many cubes longer is the first? Answer: 3.
Practice 4: A ribbon is 14 cubes long and another is 11 cubes long. How many cubes longer is the first? Answer: 3.
Guided answer: 3. Model answer: 3. Check whether the learner can represent the answer concretely and explain it.
Day 66: Count coin values
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: You have 12 pennies and 7 nickels. How many cents? Answer: 47.
Practice 2: You have 13 pennies and 8 nickels. How many cents? Answer: 53.
Practice 3: You have 14 pennies and 9 nickels. How many cents? Answer: 59.
Practice 4: You have 15 pennies and 10 nickels. How many cents? Answer: 65.
Guided answer: 41. Model answer: 35. Check whether the learner can represent the answer concretely and explain it.
Day 67: Organize tally marks
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: One group has 9 marks and another 6. How many altogether? Answer: 15.
Practice 2: One group has 10 marks and another 7. How many altogether? Answer: 17.
Practice 3: One group has 11 marks and another 8. How many altogether? Answer: 19.
Practice 4: One group has 12 marks and another 9. How many altogether? Answer: 21.
Guided answer: 13. Model answer: 11. Check whether the learner can represent the answer concretely and explain it.
Day 68: Read a picture graph
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: A picture graph shows 8 apples and 5 pears. How many more apples? Answer: 3.
Practice 2: A picture graph shows 9 apples and 6 pears. How many more apples? Answer: 3.
Practice 3: A picture graph shows 10 apples and 7 pears. How many more apples? Answer: 3.
Practice 4: A picture graph shows 11 apples and 8 pears. How many more apples? Answer: 3.
Guided answer: 3. Model answer: 3. Check whether the learner can represent the answer concretely and explain it.
Day 69: Shapes and attributes
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: How many corners does a rectangle have? Answer: 4.
Practice 2: How many corners does a rectangle have? Answer: 4.
Practice 3: How many corners does a rectangle have? Answer: 4.
Practice 4: How many corners does a rectangle have? Answer: 4.
Guided answer: 4. Model answer: 4. Check whether the learner can represent the answer concretely and explain it.
Day 70: Integrated math checkpoint
Demonstrate with manipulatives, then ask the learner to explain the strategy. Do not give the answer during independent practice.
Practice 1: 16 – 7 = ___ Answer: 9.
Practice 2: 17 – 8 = ___ Answer: 9.
Practice 3: 18 – 9 = ___ Answer: 9.
Practice 4: 19 – 10 = ___ Answer: 9.
Guided answer: 9. Model answer: 9. Check whether the learner can represent the answer concretely and explain it.
Two-week checkpoint
Use four unseen problems, one oral explanation, and one real-world application. Record addition/subtraction accuracy, place-value reasoning, and representation separately. These materials are locally developed and require standards review before claims of comprehensive alignment.