SHERELYN D. TANGONAN Teacher III Matalatala ES Mabitac Sub Office
LESSON 7: Visualizing, Representing, and Subtracting 3-digit to 4-digit numbers without and with regrouping
Lesson short review
Lesson purpose!
Lesson language
mathematical operation where one number is taken away from another. performing the subtraction operation without needing to borrow or regroup from the next higher place value. method used when the digit in the lower place value is larger than the digit it is subtracted from in the higher place value.
Lesson activity
Angelo is tasked to find the difference between the numbers below. 6 3 1 631 3 1 3 313
Veronica is tasked to find the difference between the numbers below 1 8 18 1 4 2 142 999 784 2 1 5 215
Test time
132 4,132 76 1,321 107 Directions: Perform the indicated operation using concrete objects.
conclusion
Reflection: What did you discover about your understanding of subtracting 3- to 4-digit numbers with or without regrouping?
EXIT QUESTIONS: What do you think were the key mathematical concepts addressed in this lesson? Would you rate your level of understanding of the material covered in this lesson as high, moderate, or low? Has the lesson helped you to gain further insight into aspects of the material covered that represent strengths or represent weaknesses? What would you describe as the main barriers, if any, to your ongoing progress and achievement in relation to the topic area addressed in this lesson? What do you think would best assist your ongoing progress and achievement in relation to the topic area?