Math Time MATH Tuesday 4/28/20 First Grade Get your whiteboard - PowerPoint PPT Presentation

Math Time MATH Tuesday 4/28/20 First Grade Get your whiteboard and expo marker out.

Weekly GOAL: Focus: I can find the Find the missing number! missing addend. Example: 10 - ___ = 4 ___ - 2 = 1

New Vocabulary What it may Words: look like with subtraction: Equal on BOTH sides 3 - __ = 1 Equalize : making it the same amount on each side of the equal sign (same on both side) ___-2=0 10 - 5 =5 5=5

Lesson: - Tip: Think PART- PART- Finding the Missing Number WHOLE! whole - part = part ___ - 2 = 10 whole We are trying to find the missing WHOLE. We have two parts. CHECK YOUR WORK: Are both sides equal? To find the missing whole, let’s Are my muscles equal? ADD the parts we do know! 2 10 __- 2 = 10 2 + 10 = 12 part part So now put the 12 in front! 12-2=10 12 - 2 = 10 10 = 10 Our missing number was 12!

Practice: Strategy Help - Use our part-part-whole Find the missing number strategy. ____________________ To find the whole→ ADD the parts together. whole 2 2 part part 3 3 6 4 ___ - 4 = 5 So, do 4 +5 = 9 Check: Put 9 in front and see if it is equal on both sides 9-4=5 → 5=5

Math Review First Grade Skills Use your whiteboard and Expo Marker!

Measurement: 7 in = inches There are 12 inches in 1 foot! How many inches is each of these things?

Money Challenge TIP: Here is an easier way to draw coins when = cents doing this challenge! Example: 86 P 1 N 5 86 10 D __ pennies ___ nickels ___ dimes __quarters Q 25 Example Hands-on money apps to use if you don’t have change: ● https://apps.mathlearningcenter.org/money-pieces/ ● ABCya.com : Learn to Count Money: https://www.abcya.com/games/counting_money

whole Related Facts Think: Part - Part - WHOLE part part 8 8

: g Find out what I am counting by! n i t n u o C p i k S Miss Jones is skip counting by ______. Finish my skip counting... 28, 38, 48, 58, ___, ___ Are we adding 10 or subtracting 10 each time?

TIP: All clickable links can Extended Learning: be found on my daily lesson plans under math. Video: ● YouTube: https://www.youtube.com/watch?v=wCgbVIA01N4&feature=emb_title ○ ASSIGNMENT: ● NOTE: IXL assignments IXL: https://www.ixl.com/math/grade-1 (Skill: Finding the missing number) ○ can be accessed when you log into IXL! H.5 (subtraction) ■ Games: ● Prodigy: https://sso.prodigygame.com/login#welcome ○ ABCya: https://www.abcya.com/grades/1/numbers ○ Math Games for all different topics: ○ https://couponfollow.com/research/math-and-money-fun-students Check my website for April Number Corner Videos This month’s topic: Symmetry