Yesterday you practiced measuring objects in centimeters, but the objects were in your student book. In today’s lesson, you will practice measuring using a centimeter ruler. you build understanding of centimeter lengths by working with strings cut to 1, 10, 50, and 100 centimeters.
Math4u grade 2 first term
ماث فور يو جريد 2
math grade 2 first term
math grade 2 first term
شرح دروس ماث جريد 2 الترم الاول المنهج الجديد بأسلوب سهل وبسيط
شرح دروس ماث جريد 2 الترم الاول المنهج الجديد بأسلوب سهل وبسيط
Mathematics Teacher`s Guide primary 2
Math primary 2 first term lesson 46
Learn (40 minutes)
Learn (40 minutes)
Directions
Directions
1.TEACHER SAY: First, you need a ruler. Open your student book to page Lesson 46: Apply.
STUDENTS DO: Open the student book to page Lesson 46: Apply.
TEACHER DO: As students are finding the right page, hand out scissors (or have students take them out).
TEACHER SAY: You will see a centimeter ruler on the page. Tear out the page and carefully cut out the ruler.
STUDENTS DO: Tear out the page and cut out the centimeter ruler.
TEACHER DO: Offer students assistance, as needed. When students are finished cutting, continue with the lesson.
TEACHER SAY: In our last math lesson, you shared strategies for measuring accurately. Let’s review your ideas.
TEACHER DO: Have students help you review the ideas they shared during Reflect in Lesson 45.
STUDENTS DO: Review strategies for measuring accurately.
TEACHER SAY: Great. Now let’s practice measuring. Take out a crayon to measure.
STUDENTS DO: Take out a crayon to measure.
TEACHER SAY: Place your crayon on the starting line of your ruler—the zero. Be sure your ruler and your crayon do not move around. Look at the number under the end of the crayon. If the end is lined up exactly with a number, look at the number closest to the end of the crayon.
STUDENTS DO: Line up the crayon with the zero on the ruler and measure to find the number closest to the end of the crayon.
TEACHER SAY: Use your fingers to show me how many centimeters long your crayon is.
STUDENTS DO: Hold up fingers to show the length of their crayon.
TEACHER DO: Take note of students who hold up too many or too few fingers. They may need additional instruction and support.
TEACHER SAY: Great job. The most important thing to remember when you measure is to always line up one end of the item with zero. Our rulers are small, but sometimes we want to measure longer items. If we are not able to measure, we can try to ESTIMATE lengths. Raise your hand if you remember what it means to estimate.
STUDENTS DO: Raise hand to volunteer. Selected students share their understanding of estimating.
TEACHER DO: Confirm or correct students’ thinking.
