Common Core State Standards:
4.NF.6 Use decimal notation for fractions with denominators 10 or 100 (e.g. 62/100 as .62).
4.NF.7 Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole.
· Unit fraction
In this unit, students will apply their understanding of fractions to help them understand decimal equivalence. Decimals are introduced for the first time in 4th grade. Students will make connections between fractions with the denominators of 10 and 100 within the place value chart. Students will use reading decimals aloud to help them understand the fractional equivalence as well. In addition, students will use their reasoning skills to compare decimals from the same whole.
Students will build on their understanding of fractions from 3rd grade to make sense of decimals when comparing their equivalency. They are expected to use a variety of models to support their reasoning about numbers.
· Fraction bars and circles
· Place value chart
· Number line
· Grid models
· Ruler/meter stick
Video support can be found on LearnZillion.
o Convert decimals to fractions to the tenths place using number line
o Convert decimals to fractions to the hundredths place using visual aids
o Convert fractions to decimals to the tenths place using visual aids and division
o Convert fractions to decimals to the hundredths place using division
o Compare two decimals to the hundredths place using fraction models
o Compare two decimal dollar amounts using coin values
o Compare two decimals to the hundredths place using a number line
o Compare two decimal lengths using a ruler
Mrs. Ana Rhyne
I teach 4th grade math and science at Weatherstone Elementary School. I graduated from Meredith College with a BA in Spanish and K-6 licensure.