Unit 2 – Fraction Addition and Subtraction

Vocabulary:
ü Numerator
ü Denominator
ü Equivalent Fractions
ü Unlike denominators
ü Benchmark fractions
ü Line plot
ü Unit fractions
ü Order of Operations (GEMDAS)
ü Square Root
ü Exponent

What should you be able to do at the end of this unit? Check it off when you are an expert!

Line Plots

Line plot definition and examples.

I can create a line plot involving a given set of fraction measurements.

Practice Making Line Plots

I can interpret a line plot and share my findings connected to a real world problem.

Practice interpreting line plots
Line Plot Quiz

I can use fraction operations to solve problems involving information presented on a line plot.

Order of Operations

I can use order of operations including use of parentheses, brackets, or braces to solve expression and equations (GEMDAS).

I can use order of operations using whole numbers and fractions.

Order of Operations:


Royal Rescue (Order of Ops)
external image title.png
Krypto (Order of Operations Game)
external image Primary+Krypto.jpeg

The rules of Krypto:

Combine five number cards using the four arithmetic operations (+, –, ×, ÷) to arrive at a "target" number.

Drag-and-drop the number cards onto the game board. They will snap into place on the outlined squares. From the small squares, choose which operation is to be performed.

The three buttons are used to control the game:

deal - get a new set of number cards and a new target number

hint - for the current hand, reveal one possible set of operations that yield a solution

solve - see our solution (though not necessarily the only solution)

Fractions


Fractional Wall
fraction wall showing halves, thirds, quarters, sixths, eighths, twelths and twenty-fourths
fraction wall showing halves, thirds, quarters, sixths, eighths, twelths and twenty-fourths

I can add and subtract fractions with unlike denominators by using equivalent fractions.

How to add and subtract fractions with unlike denominators.

external image gamepreview92_300.jpg Fraction Frenzy
external image escape-from-fraction-manor-icon-1.gif **Escape From Fraction Manor**
external image Dirt-Bike-Proportions1-300x165.jpgDirt Bike Proportions (Equivalent Fractions)

I can solve word problems involving addition and subtraction of fractions using models or equations.

I can use benchmark fractions to estimate mentally and to examine the reasonableness of my answer.


Fraction Games:

Adding and Subtracting Fractions

Fractions Football

Fractions Jeopardy

Splat

Pacman

Reducing Fractions

Soccer Math