Unit 10: Patterns, Sequences, and Early Algebraic Thinking

Day 23 of 30

Write expressions from words

K-2Mathematics

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Learning Objective

I can write expressions from words.

Today's Lesson

Today we will learn how to write expressions from words. Math helps us solve problems and understand the world around us.

An expression is a combination of numbers, variables, and operations (like +, −, ×, ÷). Unlike an equation, an expression doesn't have an equals sign. Examples: 3x + 5, 2(4 + 1), or 7 − 2. Expressions represent a value, and we can simplify them by following the order of operations. Think of expressions as mathematical phrases, while equations are complete sentences!

Let's break this down step by step so it's easy to understand. Follow along with the examples, and don't worry if it takes some practice to get the hang of it!

Remember: Making mistakes is part of learning. If something is tricky, try again, look at the examples, or ask for help.

Key Terms
Problem

A question we need to solve

Solution

The answer to a problem

Activities
Instructions
1. Use objects or pictures to explore write expressions from words. 2. Try the examples together. 3. Solve practice problems. 4. Check your work.
Materials Needed
  • Counters or objects
  • Pencil
  • Practice sheet
Practice Problems
1

Practice Problem 1: Apply what you learned today.

Hint: Review the examples from the lesson.
2

Practice Problem 2: Try a similar problem on your own.

Hint: Use the strategies you learned.
3

Challenge: Can you create your own problem like the ones we practiced?

Hint: Think about the pattern in the problems.

Teaching Tip

For younger learners: Use concrete objects and hands-on activities when teaching write expressions from words. Keep sessions short (10-15 minutes) and incorporate movement or songs when possible.

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