The lessons being developed here are for a 20-chapter pre-algebra module designed to prepare below-proficiency 5th and 6th graders for algebra. The module, when completed, will contain all the prerequisite chapters in gecKo mathematics on multiplication and division and on fractions and decimals needed to prepare students for the study of algebra.

*Illustrations by Suzanne Beaky and Stephen Emlund.*

###### Introduction to Fractions

Fractions as parts of a whole; Comparison of size of fractions; Expression of fractions on number line.

###### Introduction to Decimals

Comparison/Addition/Subtraction of decimals.

###### Intermediate Fractions

Expression and comparison of fractions: Equivalent fractions, mixed fractions, improper fractions.

###### Advanced Fractions and Comparison to Decimals

Equivalent fractions; Reduction of fractions; Common denominators; Comparison of fractions; Relation/comparison of fractions and decimals.

###### Multiplication of Fractions

Multiplying natural numbers, mixed numbers, proper fractions, improper fractions, and unit fractions.

###### Division of Fractions

Dividing natural numbers, mixed numbers, proper fractions, improper fractions, and unit fractions.