Detailed Lesson Plan In Mathematics Grade llMarbel Elementary School Marbel, Matalam, Cotabato Writing Three-digit Numbers in Expanded Form Date: I. Time: Objective: At the end of a 60-minute lesson, the students are expected to: 1. Cognitive: Identify the place value of a three-digit numbers; 2. Affective: To participate actively in the activities of the lesson; 3. Psychomotor: Write three-digit in expanded form; Values: Accuracy, Neatness in doings ones work, II. Subject Matter Cooperation A. Writing Three-digit Numbers in Expanded Form B. References: Mathematics Grade ll (Teachers Guide Hiligaynon) C. Materials: Show-me-cards, number cards, pictures of library III. Procedure TEACHER’S ACTIVITY A. Preliminary Activities 1) Prayer 2) Greetings -Good afternoon class. -Ok class. You may now take your sit. 3) Checking of attendance. - Who is absent today? - Very good. 4) Sitting of classroom standards -what will you do if the class is started? -Okay. That’s it. I hope that you will cooperate with that. 5) Checking and passing of assignments. - Class do we have an assignment? - Bring out your assignments and pass it in front without making noise. STUDENT’S ACTIVITY -good afternoon teacher. Good afternoon classmates. It’s nice to see you again. -none teachers -sit properly. -keep quiet and listen carefully. -raise your right hand if we want to answer. - 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. Are all the assignments are here? 6) Drill - Write the correct number on your show-me-cards as I flash the number cards. 2 tens and 9 ones=_____ 6 tens and 8 ones=_____ 8 tens and 3 ones=_____ 5 tens and 2 0nes=_____ 4 tens and 7 ones=_____ 7) Review - Okay class let us review our lesson yesterday. - Give the correct digit for the given place value. 486=hundreds 382=tens 728=ones 571=ones 853=hundreds B. Developmental Activities 1. Motivation - - What is in the picture class? What are the children doing in the library? -Yes teacher -Yes teacher - 29 68 83 52 47 - 400 80 8 1 800 - What are the things found in the library? C. Presentation of the Lesson The School Library In a school library, there are 576 Mathematics books, 324 English books, 476 Filipino books and 967 other books. - A library They read books and research for their assignments . Books Newspapers and dictionaries. - How many mathematics books are there in the library? - How many were English books? - 1. 2. 3. - Filipino books? - Other books? Here are the number of books again and study 576 mathematics books 476 Filipino books 324 English books 967 other books Since, we have already discussed about Giving the place value of each digit in a 3-digit number. I hope that you have learned to read and write 3digit numbers in symbols and in words and now familiarize yourself to another way of writing numbers. - In 576, how many hundreds are there? - How many tens are there? - How many ones? - And what is the value of 6? The number 576 maybe written in this way: 576= 5 hundreds, 7 tens, 6 ones - It can also be written as: 500+ 70+ 6= 576 Write them in the place value chart. And write them in expanded form. 476 324 967 In writing numbers in expanded form we are expressing the number as the sum of the values of its digit. - In the different examples of numbers we have discussed, what is common among them? - What were the three values taken up? - Does the value affect the - - Hundreds 4 3 9 There are 576 books in the library 324 English books 476 Filipino books 967 other books 500 or 5 hundreds 7 tens or 70 tens 6 ones or 6 Tens 7 2 6 -400+ 70+6 -300+20+4 -900+60+7 - All were three digit numbers - Hundreds, Ones 6 4 7 value of a number? - tens, ones Yes Remember : The expanded form of a number expresses the number as the sum of the values of its digit. It gives the value of D. Learning Activities for Developmental Activities - Group activity Group the class into 4 smaller groups. Each group will be given a different activity sheet. After answering every group will choose a leader and report their work. 1. Activity sheet for group 1 (Write the numbers in expanded form and each place value by filling the blanks.) 1. 468=______hundreds, ______tens, and ____ones =___+___+___ 2. 529=______hundreds, ______tens, and _____ones =___+___+___ 3. 701=______hundreds, ______tens, and _____ones =___+___+___ 4. 999=______hundreds, ______tens, and ______ones =___+___+___ 5. 881 =_____hundreds, _______tens, and 2. Activity sheet for group 2 (Write the digits in its correct place value and write it in expanded form) H 1. 2. 3. 4. 5. 555 111 208 723 518 1. 2. 3. 4. 5. 555=___+___+___ 111=___+___+___ 208=___+___+___ 723=___+___+___ 518=___+___+___ T O 3. Activity sheet for group 3 1. Write the number in expanded form and in words. a. 498=___+___+___ = b. 675=___+___+___ = c. 743=___+___+___ = d. 944=___+___+___ = e. 229=___+___+___ = 4. Activity sheet for group 4 (Write the numbers in expanded form and each place value by filling in the blanks) 1. 777=______hundreds, _____tens ,_____ones =_____+_____+_____ 2. 699=_____hundreds, _____tens, _____ones =_____+_____+_____ 3. 115=_____hundreds, _____tens, _____ones =_____+_____+_____ 4. 451=_____hundreds, _____tens, _____ones =_____+_____+_____ 5. 228=_____hundreds, _____tens, _____ones =_____+_____+_____ E. Generalization - How do you write numbers in expanded form? And how do you write numbers? Ans. Writing a number in expanded form is expressing the number as the sum of the values of its digits. + the expanded form give the value of each digit in a number. - What does expanded form means? Ans. Spread or large F. Application Illustration of a big mango tree. Prepare of cut-outs of mango fruits with a 3-digit numbers on each fruit. Attach this to these to the drawing and let the students harvest the fruits. Then students will be going to model the numbers, write them in expanded form and identify its value. IT’S HARVEST TIME! SCANIT! 1. 246 2. 374 3. 155 4. 283 5. 521 MODEL It! Expand it! G. Values Integration - How do you write numbers? Ans. You should write numbers correctly. Avoid erasures. It makes your paper dirty. - What did you learn today? Ans. Work corporately with your group IV. Evaluation A. Match the number with its expanded form. A. B. 1. 385 a. 200+20+5 2. 590 b. 400+30+9 3. 727 c. 500+90+0 4. 439 d. 300+80+5 5. 225 e. 700+20+7 B. Choose the letter of the correct answer. 1. 300+80+4 a. 348 b. 384 c. 380 2. 100+70+0 a. 107 b. 100 c. 170 3. 500+30+1 a. 503 b. 513 c. 531 4. 900+10+9 a. 909 b. 919 c. 891 5. 800+60+5 a. 865 b. 805 c. 806 C. Write in expanded form. 1. 243= 2. 582= 3. 490= 4. 351 5. 837 V. Assignment Give the place value of the three digit numbers and write it expanded form. Write it in a sheet of paper. 1. 2. 3. 4. 5. 533 333 998 201 460 Prepared by: Jenelyn B. Ferrer 3-BEED/A Submitted to: Dr. Eimer Estilloso Prof.Ed 312 (Principles and Strategies on Teaching 2) School Year: 2014-2015
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