following mathematic equation: 247 + 578= 825 Using this mathematic equation, students can identify the addend, decompose the two multi- digit numbers into their hundreds, tens, and ones, regroup the two numbers using pace value exchange, and then identifying the position of place value of each digit. Guided Practice: Activity Description/Teacher Student Actions The teacher will guide his students through a whole group discussion on multi-digit addition using the gradual release of responsibility model and place-value mat manipulative strategies. The following problems will be modeled using the ELMO: 236 + 432 674 + 234 The students will participate in the teacher’s whole-group discussion in correlation with multi- digit addition and the place-value manipulative strategy. Students will answer questions such as: “How do we decompose 236 + 432 into its hundreds, tens, and ones?” “How do we know where to place each base-ten block?” “How do we know what number to wrote under
657 + 256 432 + 456 This teacher will explain his thinking a model how to solve each problem using the base-ten blocks and place value mat. Example on modeling 236 + 432 First, let’s identify how many ones, tens, and hundreds each number is composed of. Then, let’s decompose each number into its hundreds, tens, and ones. Teacher will grab 2 hundreds blocks, 3 sticks of ten, and 6 ones for 236. Next, the teacher will grab 4 hundreds blocks, 3 sticks of tens, and 2 ones for 432. Then, the teacher will put the hundreds blocks, sticks of tens, and ones altogether on the place value mat chart into their correct place. Now that we all have placed our base ten blocks in the correct spots, let’s add our hundreds first, tens second, and ones last. Explain to students that 4 hundreds blocks add 2 hundreds blocks equals 6 hundreds blocks. Do the same concept for tens and ones. Then explain to students that we can write the numeral down for each place value in order to find our sum of the two multi-digit numbers that were added on the place value mat. So, 236 + 432 = 668 each place value on the place value mat?” Students will see problems modeled for them and the correct way to solve them using the place value mat chart manipulative strategy. The teacher will use the gradual release of responsibility model to gradually release students to independent work. Independent Student Practice: Activity Description/Teacher Student Actions Prepare for exit ticket: Students will complete the exit ticket to demonstrate their understanding of how to use
The teacher will ask students to return back to their desk so they will be able to complete their exit ticket with 5 problems.
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