5 Math 1 - Place Value and Decimal Fractions

Pearl Diver

Navigate the number line while diving among shipwrecks and sunken ruins. Will you find a pearl, or an old boot? Watch out for the electric eel! Pearl Diver teaches properties of numbers, how to plot numbers, how to visualize quantity on the number line, how to order numbers, and how to use the number line as a visual model for mathematical operations.


Shadows are corrupting the land. Restore the balance of nature by exploring place value. Gate guides students in: Lowering intimidation about large numbers and decimals. Understanding the meaning of place value. Realizing that the same mathematical concepts that apply to the "easy" integers apply to every order of magnitude.