Constructing with Legos: STEM & Math Building Worksheet for 9-Year-Olds (Ages 9, Grades 3–4)

Free worksheet covering multiple subjects for age 9 students. Created with Learning Corner's AI-powered tools.

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Instructions

Welcome, master builder! Get ready to use your building brain to solve some fun LEGO-themed puzzles. Read each section carefully and write your answers in the spaces provided.

Part 1: Brick Math

Solve these brick-tastic word problems!

1. You are building a wall that is 10 studs long. If you use only 2x4 bricks (which are 4 studs long), how many bricks will you need to make one row that is 10 studs long? Oh wait, that doesn't work perfectly! How many 2x4 bricks can you use, and what size brick would you need to finish the row?

2. A standard LEGO minifigure is about 4 cm tall. If you built a tower that was 60 cm tall, how many minifigures could you stack on top of each other to reach the same height?

3. You have a big bucket with 320 LEGO bricks. You want to share them equally among yourself and 3 friends. How many bricks does each person get?

Part 2: Word Jumble

Unscramble these mixed-up words to find common LEGO terms.

  1. K C R B I:
  2. F I I M G U N I E R:
  3. U D S T:
  4. A E L T P:
  5. L D O M E:

Part 3: Design a Creation!

Imagine you need to build a vehicle that can travel on land and in the water. In the box below, draw your amazing amphibious LEGO creation. Then, describe its special features on the lines below.

[ Draw your vehicle here ]

My creation is called:

Its special features are:

Part 4: The Tower Challenge

Read the clues carefully to figure out the correct order of the colored bricks in the tower, from bottom to top.

• The tower is 5 bricks high.
• The bottom brick is yellow.
• The red brick is directly below the green brick.
• The blue brick is somewhere above the red brick.
• The black brick is at the very top.

Write the correct order of colors from bottom to top:

Bottom:

2nd:

3rd:

4th:

Top:

Answer Key

Part 1: Brick Math

  1. You can use two 2x4 bricks (2 x 4 = 8 studs). You would need a 2x2 brick to finish the 10-stud row (8 + 2 = 10).
  2. 15 minifigures (60 cm ÷ 4 cm = 15).
  3. 80 bricks each (320 bricks ÷ 4 people = 80).

Part 2: Word Jumble

  1. BRICK
  2. MINIFIGURE
  3. STUD
  4. PLATE
  5. MODEL

Part 3: Design a Creation!

Answers will vary. The goal is creativity!

Part 4: The Tower Challenge

The correct order from bottom to top is:

  • Bottom: Yellow
  • 2nd: Red
  • 3rd: Green
  • 4th: Blue
  • Top: Black
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