[Step Reading E] Unit 1 Science Octopus's Day Unit 2 Social Studies My Cave House Unit 3 Science A Tree for Everybody Unit 4 Science Frog's Life Review Test 1 Unit 5 Science Bats and Birds Unit 6 Science A Star for My Bedroom Unit 7 Social Studies Granddad's Treasure Unit 8 Social Studies Funny Sandwich Review Test 2 Unit 9 Social Studies What Color Are Kisses? Unit 10 Social Studies Family Troublemaker Unit 11 Science Apples and Bananas Unit 12 Social Studies Space Trash Review Test 3 Story Maps