All two-rod representations
Explore number trains through models, conversation, and hands-on discovery. Account for the maximum rod length when enumerating solutions. Explore a model, explain the relationship, and try it with physical materials.
What children will practice.
Explore how to account for the maximum rod length when enumerating solutions.
Ideas to explore.
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.
An investigation to explore
Find every two-rod train totaling 17. Count a reversed pair only once. Use rods from 1 through 10.
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.