⚖️ AINMATH · Classroom Worksheet

Comparisons

Lower elementary · Comparisons ⏱ 15–20 min

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Learning goal — Be able to compare the length, weight, area, and volume of two objects and say which is longer, heavier, larger in area, or holds more.

Length: longer/shorter | Weight: heavier/lighter | Area: larger/smaller | Volume: holds more/less

💻 Access on a tablet → ainmath.com/comparison-basics.html

1Comparing Length and Weight

① Which is longer: a pencil (15 cm) or an eraser (5 cm)?

② Which is heavier: a watermelon (3 kg) or an apple (200 g)?

2Comparing Area and Volume

① Which is larger in area: a piece of colored paper that's 4 squares wide by 3 squares tall, or one that's 2 squares wide by 2 squares tall? (Count the squares to compare.)

② Which holds more water: a 500 mL bottle or a 1 L (1000 mL) bottle?

3Think Further

Q. The word "bigger" can mean longer, heavier, or larger in area, depending on the situation. Pick two objects in your classroom and write a sentence comparing them based on length, weight, or area.

For teachers — cover before handing out to students

Answers & Solutions

Activity 1 — ① Pencil ② Watermelon (3 kg = 3000 g, heavier than 200 g)

Activity 2 — ① 4×3=12 squares is more than 2×2=4 squares, so the 4-by-3 paper ② The 1 L bottle

Activity 3 — Open-ended. Any answer with a clear basis for comparison is correct — for example, "The desk has a larger area than the pencil case," or "The backpack is heavier than the eraser."