Use Percent to Solve Problems

My Notes Level 1 Support Level 2 Standard Level 3 Enrichment

Today's objectives

Content Objective: I can solve problems involving discounts, markups, tax, and tips using percents.

Language Objective: I can explain my solution using the words discount, markup, tax, tip, and percent.

📖 See Learn It for the explanation and worked examples, and the Vocab tab for the words. These are your notes to fill in and keep.

✏️ Fill in each blank as we go. Use the Word Bank to help you.

📚 Word Bank — fill each blank with the best word

👆 Tap any word to see what it means and a picture.

Level 3: try the blanks from memory first, then check the bank.

1An amount taken off the original price is a .
2An amount added to a store's cost to set a higher selling price is a .
3An extra percent added to a purchase that goes to the government is .
4Extra money added for good service, often a percent of the bill, is a .
5A number out of 100 is a .

Write About the Math Guided ESOL writing

Use the support level you need. Every level answers the same math question.

1. Understand the Question

explain

In your table you found the discount, then the tax. Why do we calculate the tax on the price AFTER the discount instead of the original price?

Your job: Answer the question. Use math evidence. Explain how the evidence proves your answer.Responde la pregunta. Usa evidencia matemática. Explica cómo la evidencia demuestra tu respuesta.

2. Plan Your Math Words

Check at least two words you will use.

Discount — Money taken off the first price to make it cheaper.Descuento — Dinero que se quita del precio original para que sea más barato. Markup — Money added to the cost to set the selling price.Recargo (margen) — Dinero que se suma al costo para fijar el precio de venta. Tax — Extra money added to a price for the government.Impuesto — Dinero extra que se suma a un precio para el gobierno. Percent — A way to compare a number to 100, shown with the % sign.Porcentaje — Una manera de comparar un número con 100, con el signo %. Tip — Extra money you give for good service.Propina — Dinero extra que das por un buen servicio.

Say it first: Say your idea to a partner or quietly to yourself before you write.Di tu idea a un compañero o en voz baja antes de escribir.

I find the discount first because ___.Primero hallo el descuento porque ___.

3. Build Your Explanation

Model the parts: This model shows the parts of an explanation. It does not answer your writing question.

Claim: A discount lowers the price, while tax, tip, and markup raise it.

Evidence: Students sort discount as lowering price and tax/tip/markup as raising it, and recognize all are a percent of a price.

Reasoning: This evidence connects the definition of percent to the mathematical claim.

Start

Most language support

Complete the frames. Use the word bank.Completa las oraciones. Usa el banco de palabras.

I find the discount first because ___.Primero hallo el descuento porque ___.
Then I take 5% tax on the ___ price, which is ___.Luego tomo 5% de impuesto sobre el precio ___, que es ___.

Build

Some language support

Write two connected sentences. Use because, so, or but.Escribe dos oraciones conectadas. Usa porque, entonces o pero.

My claim is ___.Mi afirmación es ___.
I know because ___.Lo sé porque ___.
So ___.Entonces ___.

Explain

Light language support

Write a claim, give math evidence, and explain your reasoning.Escribe una afirmación, da evidencia matemática y explica tu razonamiento.

My claim is ___.Mi afirmación es ___.
My math evidence is ___.Mi evidencia matemática es ___.
This proves ___ because ___.Esto demuestra ___ porque ___.

4. Check Your Explanation

I answered the question.Respondí la pregunta. I used math evidence: numbers, an equation, a model, or a comparison.Usé evidencia matemática: números, una ecuación, un modelo o una comparación. I explained how the evidence proves my answer.Expliqué cómo la evidencia demuestra mi respuesta. I used at least two math words.Usé por lo menos dos palabras matemáticas. I reread complete sentences and punctuation.Volví a leer mis oraciones completas y la puntuación.