Whole & PartsGrade 1Lesson 01

Equal shares fill a whole

Explore whole & parts through models, conversation, and hands-on discovery. Explain how equal unit pieces compose one whole. Explore a model, explain the relationship, and try it with physical materials.

1 session20–20 min per sessionFull PDFs with a paid adult account

What children will practice.

Explore how to explain how equal unit pieces compose one whole.

In the learner’s words: I can show my idea and explain how I checked it.

Ideas to explore.

Whole & PartsDiscover

Connect a model with a physical or paper representation. Invite learners to show what they notice and explain a relationship; an adult can read the directions and record their words.

A look inside

An investigation to explore

Cover the same-size hexagon using only 1/2 pieces. How many pieces fill it? Show that no space remains.

An adult can read the prompt. Learners may arrange, draw, point, or explain. Full teaching directions and answer keys are in the free adult classroom.

From a model to a little discovery.

The complete lesson includes a teaching sequence, worked example, guided and independent investigations, a transfer task, student work mats, and a separate answer key. Choose US Letter or A4 PDFs.

Use Glow Math & Logic as an practice companion. The printable lesson also works away from a screen. Full teaching materials are included with a paid adult account.

Choose by readiness and prior teaching. Lesson drafts include proposed grade placement; starter guides are flexible workshop introductions.

Complete lesson drafts with proposed grade placement. Educators can share detailed feedback from the teaching guide.

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