## REACH THE TARGET—DECIMALS AND PLACE VALUE

Students develop their understanding of place value by making and refining estimates of the locations of unlabeled tick marks on a number line. As students progress, the number lines display more detail, with the locations of tick marks progressing from integers to values that can be identified to the tenths, hundredths, thousandths, ten thousandths, and hundred thousandths places.

OBJECTIVES
• Students will develop an understanding of the base-ten number system and place value.
• Students will use a number line model to explore place value, with a focus on tenths, hundredths, thousandths, ten-thousandths, and hundred-thousandths.
• Students will develop strategies for estimating the location up to hundred-thousandths of an unlabeled decimal-valued point on a number line.

COMMON CORE CONNECTIONS
Mathematical Practices

(1) Make sense of problems and persevere in solving them; (2) Reason abstractly and quantitatively; (3) Construct viable arguments and critique the reasoning of others; (5) Use appropriate tools strategically; (7) Look for and make use of structure.

Content Standards

4.NF6, 7; 5.NBT3; 6.NS6