- Mapping Penny's WorldLoreen Leedy
- Measuring PennyLoreen Leedy
- The great graph contestLoreen Leedy
- Hello, Jose!Loreen Leedy
- Fraction actionLoreen Leedy
- Postcards from PlutoLoreen Leedy
- Subtraction ActionLoreen Leedy
- Crazy like a foxLoreen Leedy
- 2 x 2 = boo!Loreen Leedy
- Seeing SymmetryLoreen Leedy
- Who's Who in My Family?Loreen Leedy
- Mission--additionLoreen Leedy
- Look at My BookLoreen Leedy
- The great trash bashLoreen Leedy
- Follow the Money!Loreen Leedy
- Messages in the mailboxLoreen Leedy
- There's a frog in my throat!Loreen Leedy
- It's Probably PennyLoreen Leedy
- The Edible PyramidLoreen Leedy
- The shocking truth about energyLoreen Leedy
- Blast Off to Earth!Loreen Leedy
- How humans make friendsLoreen Leedy
- Tracks in the SandLoreen Leedy
- The monster money bookLoreen Leedy
