FutureStepsSign in 7th grade learning.
Make the idea click.
Seventh-grade learning asks for more than a result: proportional relationships, arguments and scientific explanations need reasons. Work through percent change, then use the same habit of identifying a reference point in your schoolwork.
Try the worked exampleFind the starting point
Percent change compares the change with the original amount. Dividing by the final amount answers a different question. Write a label beside each number before calculating so the chosen denominator has a reason.
What is the reference amount, and how does the question tell you?
Explore 7th grade subjects.
Mathematics
Selected starter topics
Explain signed calculations, proportional rules, scale, probability, circles, volume, inequalities and sample-based estimates.
- Measure a change as a percent
- Solve an equation in two steps
- Find the chance of an event not happening
English language arts
Selected starter topics
Explore word clues, themes, poetry, drama, text structure, rhetoric, clear sentences and source-based research.
- Notice a clue before it matters
- Explain how word choices create mood
- Consider another option in an argument
Science
Selected starter topics
Explore solutions, motion, heat, gravity, changing Earth, body systems and inherited variation.
- Read the atoms in a chemical formula
- Average speed uses the whole journey
- Why less energy reaches the next feeding level
Social studies
Selected starter topics
Connect Texas peoples, missions, statehood, rights, transport, water choices, energy markets and public funding.
- Connect Spindletop to industrial growth
- Distinguish branches from levels of government
- Compare perspectives in Texas history
These examples come from FutureSteps’ Texas starter collection. They introduce selected topics and support review; they are not a complete curriculum, school assessment or course credit.
Measure a change as a percent
Compare the amount of change with the original amount to find a percent change.
Percent change describes how large a change is compared with the starting amount. First find the amount gained or lost. Then divide that change by the original amount and multiply by 100%.
The original amount is the reference whole, so choosing the wrong denominator changes the meaning. An increase and a decrease between the same two amounts can have different percentages because they start from different wholes.
A club grows from 20 members to 25 members. What is the percent increase?
- Find the increase: 25 − members. This is the added part, not the final membership.
- Compare the added part with the original 20: . The increase is one quarter of the starting membership.
- Convert 0.25 to 25%. Check: 25% of 20 is 5, and 20 + . Dividing by the final 25 would answer a different question.
Your turn.
A collection grows from 40 cards to 50 cards. What is the percent increase?
- 20%
- 25%
- 10%
Show the answer and explanation
25%
The increase is 50 − cards. Use the starting 40 as the whole: % = 25%.
Example from the FutureSteps Mathematics starter collection. Course reference: Texas TEKS · Grade 7 Mathematics. The example is app-authored; the reference does not imply endorsement or complete coverage.
A routine to try next.
- Separate the original amount, final amount and change into three labelled values.
- Explain which amount is the reference before forming a fraction or percent.
- Use the answer to reconstruct the final amount as a check.
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Questions before you begin.
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