Reach for the Star

Number checkpoint and feedback · Optional extension

L012 · Allow 10–15 minutes for learners ready to move on. Answers are available after an attempt.

Stretch

Solve 3/5 of x=42 and 0.2x=18.

Reveal a worked check after attempting

x=70 and x=90.

Deep challenge

Diagnose why 50% increase followed by 50% decrease does not restore the start.

Reveal a worked check after attempting

Multipliers 1.5×0.5=0.75, a 25% net decrease.

Recall & Review: feedback and extension integration

Lesson L012: Number checkpoint and feedback

Objective: Demonstrate cumulative number understanding, diagnose the cause of an error and verify a repair independently.

60-minute structure: 0-7 Connect & Check; 7-14 Share; 14-25 Present/model; 25-44 Apply route choice/practice; 44-52 independent exam-style check; 52-60 Recall & Review, WWW/EBI and next step.

What Went Well (WWW)

I chose an appropriate method and produced clear evidence against the lesson objective.

Even Better If (EBI)

I will show the missing working step, correct one misconception and test the method on a fresh question.

Stretch and deep challenge

Stretch: Solve 3/5 of x=42 and 0.2x=18.

Deep challenge: Diagnose why 50% increase followed by 50% decrease does not restore the start.