Here is a practical classroom idea that makes room for student thinking without a complicated setup. Write 8 + 7 and model making ten as 8 + 2 + 5. Invite another strategy, record both representations, and ask why they reach the same total. Use counters for support; extend to 18 + 7.
Prepare the learning space
Choose a small set of familiar materials and decide what students should be able to explain at the end. Model one example aloud. Keep directions brief, and let children practice with a partner before working independently.
Teach the activity
Write 8 + 7 and model making ten as 8 + 2 + 5. Invite another strategy, record both representations, and ask why they reach the same total. Use counters for support; extend to 18 + 7.
Pause and ask: What did you notice? How do you know? Could another answer work? Invite children to show their thinking through words, pictures, or objects. The conversation matters more than finishing quickly.
Differentiate and extend
For learners needing support, reduce the number of choices, provide a visual prompt, and accept oral responses. For children ready for more, ask them to justify a second strategy, explain an exception, or teach the idea to a partner.
Check understanding
Offer one fresh example without a model and listen to the explanation. Note who responds independently, who benefits from a cue, and what needs revisiting. Use that evidence to shape the next lesson.
Keep the routine useful
Repeat the thinking process with a new example later in the week. A short, thoughtful lesson can build confidence when children have time to notice, explain, and revise.
For more low-prep teaching ideas, browse Classroom Ideas.