Ben Franklin and the Magic Squares (Step-Into-Reading, Step 4)

A funny, entertaining introduction to Ben Franklin and his many inventions, including the story of how he created the "magic square." A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!

• Thomas Jefferson's Feast (Step into Reading) (Step #4)
• Escape North! The Story of Harriet Tubman (Step-Into-Reading, Step 4)
• Take a Hike, Teddy Roosevelt! (Step into Reading)
• George Washington and the General's Dog (Step-Into-Reading, Step 3)
• Moonwalk: The First Trip to the Moon (Step-Into-Reading, Step 5)
• Helen Keller: Courage In The Dark
• Volcanoes! Mountains of Fire (Step-Into-Reading, Step 4)
• Listen Up!: Alexander Graham Bell's Talking Machine (Step into Reading)
• Eat My Dust! Henry Ford's First Race (Step into Reading)
• To the Top! Climbing the World's Highest Mountain (Step-Into-Reading, Step 5)