Unit 6 · Standard 6.NOS.1
Division Expressions with Fractions and Whole Numbers
Evidence Lab Mission
The Fraction Vault
You are the lead forensic analyst at the Reyes Detective Agency. A 3-foot strip of evidence tape must be cut into exact 1/4-foot sections before it can be logged — and the vault that holds the case file only opens once you know how many pieces that makes. Interpret fraction division and crack the case.
My Notes Level 1 Support Level 2 Standard Level 3 Enrichment
Today's objectives
Content Objective: I can divide a whole number by a unit fraction and a unit fraction by a whole number by writing the whole number over 1 and using Keep, Change, Flip.
Language Objective: I can explain each step of Keep, Change, Flip using the words reciprocal, divisor, and quotient.
📖 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.
👆 Tap any word to see its meaning and a picture.
Level 3: try the blanks from memory first, then check the bank.
- 1Flipping the numerator and denominator gives the .
- 2The answer to a division problem is the .
- 3In 6 ÷ 1/2, the number 6 being divided is the .
- 4In 6 ÷ 1/2, the number 1/2 we divide by is the .
- 5A fraction with a numerator of 1, like 1/5, is a .
Write About the Math
How does interpreting fraction division help the detective?¿Cómo ayuda interpretar la división de fracciones al detective?
Say your answer to a partner first. Then write it, using at least two of these words:
Model: There will be more than 3 sections because each piece is smaller than a whole foot. — Students reason that dividing by a number less than 1 gives a quotient greater than the dividend, so there are more than 3 sections.
Start
Complete the frames. Use the word bank.Completa las oraciones. Usa el banco de palabras.
- The detective can mark ___ sections because 6 ÷ 1/3 = ___.
- My answer is ___ because ___.Mi respuesta es ___ porque ___.
Build
Write two connected sentences. Use because, so, or but.Escribe dos oraciones conectadas. Usa porque, entonces o pero.
- My claim is ___.Mi afirmación es ___.
- My evidence is ___, so ___.Mi evidencia es ___, entonces ___.
Explain
Write a claim, give math evidence, and explain your reasoning.Escribe una afirmación, da evidencia matemática y explica tu razonamiento.