• Elementary Mathematics Grade 2 Unit 6

Subject: Mathematics
Timeline: 8 days
Unit 6 Title: Time

Unit Overview:

This unit will focus on time. Children will learn to tell time to the hour, half-hour, quarter-hour, and to the nearest five minutes. Children will be given experiences in reading and recording time on analog clocks and telling and writing time in digital clock notation. Working with Time is a supporting cluster. Be sure to connect the clock activities to major clusters in Number and Operations in Base Ten; skip counting, reading and writing numbers, and comparing numbers.

Unit Objectives:

At the end of this unit, all students must be able to tell and write time from analog and digital clocks to the nearest five minutes.

Focus Standards:

PA.CCSS.Math.Content.CC.2.1.2.B.2 Use place value concepts to read, write and skip count to 1000. (2.NBT.2)
PA.CCSS.Math.Content.CC.2.4.2.A.2 Tell and write time to the nearest five minutes  using both analog and digital clocks. (2.MD.7)

Mathematical Practice Standards:

#1  Make sense of problems and persevere in solving them.

Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals.  They make conjectures about the form and meaning of the solution and plan a solution pathway rather than simply jumping into a solution attempt. Proficient students check their answers to problems using a different method.  They continually ask themselves, “Does this make sense?” They can understand the approaches of others to solving complex problems and identify correspondences between different approaches.

#4  Model with mathematics.

Mathematically proficient students can apply the mathematics they know to solve problems arising in everyday life, society, and the workplace. In early grades, this might be as simple as writing an addition equation to describe a situation.

#5  Use appropriate tools strategically.

Mathematically proficient students consider the available tools when solving a mathematical problem.  These tools might include paper and pencil, concrete models, a ruler, a protractor, or a calculator.  Proficient students are sufficiently familiar with tools appropriate for their grade to make sound decisions about when each of these tools might be helpful, recognizing both the insight to be gained and their limitations.

#6  Attend to precision.

Mathematically proficient students try to communicate precisely to others.  They try to use clear definitions in discussion with others and in their own reasoning.  They state the meaning of symbols they choose, are careful about specifying units of measure, calculate accurately and efficiently, and express numerical answers with a degrees of precision appropriate for the problem context.

Concepts - Students will know:
• How to read an analog clock
• How to read a digital clock
• How to tell time to the hour
• How to tell time to the half hour
• How to tell time to the quarter hour
Competencies -Students will be able to:
• Tell and write from analog and digital clocks to the nearest five minutes.

Assessments:
• Unit 8 Assessment and Exit Slips (Quizzes)
• Daily RSA

Elements of Instruction:

First Grade Common Core State Standards for Measurement and Data states that students can tell and write time in hours and half-hours using analog and digital clocks.

Differentiation:

Each lesson has differentiation options for each portion of the lesson. Additional differentiation options are listed with directions and student masters in the Teacher’s Guide.

Interdisciplinary Connections:
• Program related literature books and daily math routines.

Additional Resources / Games:

Students will play a variety of games that directly support the content of the lesson and the overall goals for the unit. Games for unit eight include:
• Time Match
• Show Me Time
• I Have Who Has