# Decimaster

Students experiment with representing decimal fractions in a variety of ways. Students are presented with a decimal fraction shown both as a number and in words. They manipulate a range of representations to match the given fraction. The various representations include: counting frame, number line, odometer dial, common fraction, rectangular area model and circular area model.

### Learning objects Decimaster: match-up 1Students adjust units on an area representation and a common fraction to match the decimal fraction. Students deal with numbers from zero to one: parts of a whole. Decimaster: match-up 2Students match to up to six other representations of the fraction. Students may choose to work on all representations or to focus on one or two representations to improve understanding. Students deal with numbers from zero to one: parts of a whole. Decimaster: match-up 3Students manipulate two randomly chosen representations to match the decimal fraction. Students deal with numbers from zero to one: parts of a whole. Decimaster plus: match-up 1Students manipulate the number line and the common fraction to match the decimal fraction. Students deal with numbers from zero to four: whole and parts of a whole. Decimaster plus: match-up 2Students work through these representations in any order: common fraction, number line, counting frame and dial. They may work on all representations or focus on one or two representations. Students deal with numbers from zero to four: whole and parts of a whole. Decimaster plus: match-up 3Students manipulate two of a random selection of these representations: common fraction, number line, counting frame and dial. Students deal with numbers from zero to four: whole and parts of a whole. Decimaster collections: match-up 1Students manipulate a collection (represented by fish bowls) and a common fraction to match the decimal fraction presented. Students deal with numbers from zero to four: whole and parts of a whole. Decimaster collections: match-up 2Students work through these representations in any order: common fraction, number line, counting frame, dial and a collection (represented by fishbowls). Students deal with numbers from zero to four: whole and parts of a whole. Decimaster collections: match-up 3Students work with two randomly chosen representations including common fraction, number line, counting frame, dial and a collection (represented by fishbowls). Students deal with numbers from zero to four: whole and parts of a whole.