1. Order and Compare Length Unit of Study: Measurement- Length and Time Global Concept Guide: 1 of 4

2. Content Development  Students will order lengths of a variety of objects.  Students should realize: to put objects in order by length they must put one end of each object at the same “starting line” so each object will have a “fair chance” to be the longest.  Students should use content specific vocabulary when ordering three objects by length (longer, shorter, longest, shortest).

3. Day 1  Engage/Student Discovery: Dana Center Early Mathematics Resource First Grade Session 1: Ordering Three Objects by Length  Use literature connection and lesson to promote discovery with ordering length.  Create a class anchor chart to record responses for comparison words (for example- longer, shorter, etc… )  Building Conceptual Knowledge: Illuminations Lesson: We’re Going on a Measurement Hunt  After students have the opportunity to record objects that are shorter, equal to, or longer to their piece of string, have a class discussion about their observations. Teachers can record objects on an anchor chart with 3 columns to organize the discussion of objects.  Journal/Notebook Extension- Students can record objects shorter, equal to, or longer in an entry. They can record their observations in a 3 column t-chart. ShorterEqualLonger

4. Day 1  Exit Ticket: Go Math p. 372 #14  Students will have the opportunity to draw four objects from shortest to longest.  Possible Center Ideas- these ideas may also used for reteach groups  Which is the Longest? Which is the Longest?  Scoop and Order Scoop and Order

5. Day 2  Go Math Lesson 9.2 Indirect Measurement  Listen and Draw p. 373: Students will listen to clues to determine the longest length and draw the strings to match the clues.  Extend the Math Activity p. 375: A green pencil is shorter than a purple pencil. The purple pencil is shorter than a blue pencil. Is the blue pencil shorter or longer than the green pencil?  This activity will be beneficial to build understanding of length and inverse relationships. If a student knows the relationship of one object is longer, then the second object is shorter.  Math Journal Extension/Exit Ticket p. 376: Use different colors to draw 3 lines that are different lengths. Then write 3 sentences comparing their lengths.

6. Enrich/Reteach/Intervention  Reteach/Intervention  Go Math: Chapter 9 TE p. 369B Tier 1 and Tier 2 Interventions  Go Math: Chapter 9 E70- Students will label the longest and shortest when given a set of objects  Enrich  Go Math: Chapter 9 TE p. 373B Enrich  Problem Solving Situation Problem Solving Situation  Go Math: Chapter 9 TE p. 369B Enrich

7. Literature for your Classroom Library