One answer helps the next
Keep track of what each number means in a two-step story.
Explore this lesson →8 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Read the final question, then identify the amount you need to find first. The first answer may not be the answer the story asks for.
- Let m stand for the first amount and n for the final amount. A letter keeps the quantity's meaning while you work out its value.
- Choose an equation for each relationship. Carry your first amount into the next step, then reread the story with the final answer and its unit.
Something to notice
These eight guided plans cover all four operations and keep intermediate quantities and units explicit. Several commutative equation choices are accepted. The planner provides a useful first target; learners still need opportunities to choose their own route, solve without the planner and explain their reasoning. Estimation, rounding-based reasonableness, less-supported transfer and educator/learner review remain separate work within this standard. A checked plan is not mastery.
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Grade 3 · 3.OA · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.