### Common Core State Standard

### 4.NF.A.1

Explain why a fraction *a*/*b* is equivalent to a fraction (*n* × *a*)/(*n* × *b*) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.

*CCSS: 4.NF.A.1*

Take an alien flying saucer for a spin and collect numbered fuel pods that contain equivalent fractions. Collecting fuel pods keep your saucer flying. Try flying as long as you can.

*CCSS: 5.NBT.A.4, 4.NF.A.1, 6.NS.C.7*

Slide the math gate back and forth to allow the correct number balls to cross while preventing the wrong ones from crossing. Choose to practice one of four skills: negative number comparison, decimal rounding, equivalent fractions or reducing fractions.

*CCSS: 4.NF.A.1*

Complete the tank run safely through the minefield. The mine with the equivalent fraction is the one that is safe to pass over. Complete all six levels to become a master tanker.

*CCSS: 4.NF.A.1, 5.NBT.B.7, 6.NS.B.3, 7.NS.A.1d, 7.NS.A.2c, 7.NS.A.2d*

Snake Math Advanced Basic too easy for you? Then play this game, Snake Math Advanced, for a real challenge! Just like Snake Math Advanced Basic but a little harder.

*CCSS: 4.NF.A.1, 5.NBT.B.7, 6.NS.B.3, 7.NS.A.1d, 7.NS.A.2c, 7.NS.A.2d*

Like Snake Math above but in this game you get to choose to play using equivalent fractions, fractions to decimals, decimal operations or positive/negative integer operations.

*CCSS: 4.NF.A.1, 5.NBT.A.3*

Find the equivalent numbers (decimals and fractions) and then knock them down with your catapult. Questions? See our video on how to play here: Throw the Ball Fractions Video