Convert Measurement Units

My Notes Level 1 Support Level 2 Standard Level 3 Enrichment

Today's objectives

Content Objective: I can convert measurement units using ratios and conversion factors.

Language Objective: I can explain my conversion using the words conversion factor, unit, equivalent, and ratio.

📖 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.

1A ratio equal to 1 that relates two units, like 12 inches / 1 foot, is a .
2A standard amount used to measure, like a foot or a gram, is a .
3Two measurements that name the same amount, like 1 foot and 12 inches, are .
4A comparison of two quantities is a .
5Units like inches, feet, and pounds used mainly in the U.S. are .
6Units like meters, grams, and liters based on tens are .

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

How did you use a conversion factor like '1 ft = 12 in' to fill in the ratio table, and how did you decide whether to multiply or divide?

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.

Conversion Factor — A ratio that helps you change one unit into another.Factor de conversión — Una razón que te ayuda a cambiar una unidad por otra. Unit — A standard amount used to measure, like an inch or a liter.Unidad — Una cantidad estándar para medir, como una pulgada o un litro. Equivalent — Having the same value, just in different units.Equivalente — Tener el mismo valor, solo en unidades distintas. Ratio — A way to compare two amounts.Razón — Una manera de comparar dos cantidades. Customary units — The U.S. way of measuring, like inches, feet, and pounds.Unidades usuales (sistema inglés) — La forma de medir de EE. UU., como pulgadas, pies y libras.

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.

To convert ___ to ___, I ___ by ___.Para convertir ___ a ___, ___ por ___.

3. Build Your Explanation

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

Claim: A foot is bigger than an inch, so I must convert to compare or combine the measurements.

Evidence: Students explain a foot is the larger customary unit (12 inches) and that mixed units must be converted to the same unit before working with them.

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

Start

Most language support

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

To convert ___ to ___, I ___ by ___.Para convertir ___ a ___, ___ por ___.
___ equals ___ because the conversion factor is ___.___ es igual a ___ porque el factor de conversión 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.