Math Demo Lesson

Presentation of 2nd grade Math Demo Lesson 

Prepared by: Lianie Jean 

Slide 1: Title Slide

Big Title: Math Fun: Solving Word Problems!

Subtitle: Addition (+) and Subtraction (-)

Speaker Notes: Good morning, look here, let's explore signs, Addition (+) and Subtraction (-)

Slide 2: Today's Goal: What are we learning?

"Today I will learn addition (+) and subtraction (-)."

"I will solve word problems by adding and taking away.”

This means the numbers get bigger when you add and smaller when you subtract.

Slide 3: Sign Recognition 

Visuals: Circle the addition 

(+) in green 💚 

Words: Addition, Plus, Putting Together. 

Circle the Subtraction 

(-) in red❤️. 

Words: Subtraction, Minus, Taking Away.

Speaker Notes:

"Look at the board. Point to the sign that means we are bringing things together? Yes, the Plus sign! Now, point to the sign that means things are going away or we are finding the difference? Yes, the Minus sign.”

Slide 4: Model - Watch Me!

Visuals: 8 - 3 = 5 

✏ ✏✏ ✏✏ - ✏✏ ✏= ✏ ✏✏ ✏✏

Sarah's Pencils Story: "Sarah has 8 pencils. She gives 3 to her friend. How many pencils does Sarah have now?"

The Math:

Speaker Notes:

"Watch how I solve this. Sarah starts with 8. If she gives them away, does she have more or less? Less! So I use subtraction. 8 minus 3 equals 5.”

Slide 5: Guided Practice - Partner Work: Turn to your Partner! "John has 5 toy cars. His friend gives him 4 more. How many toy cars does John have now?"

Visual Aid: ☆☆☆☆☆ + ☆☆☆☆ = ☆☆☆☆☆☆☆☆☆

Speaker Notes:

Read the story about John. Is John getting more cars or less cars? Work together to write the equation on your worksheet (5 + 4= ). (Pause for 1 minute) "Who can tell me the answer?

 

Slide 6: Independent Practice: On Your Own

Visuals: "Now it is your turn. "Bill has 6 🍏 🍏 🍏🍏 🍏🍏🍏🍏🍏 apples his sister gives him 3 🍏🍏🍏 more. How many apples does John have now 🍏 🍏 🍏

🍏 🍏🍏🍏🍏🍏🍏🍏🍏 __?"

Speaker Notes: Instructions

Read the story carefully. Write the equation and solve ( 6 + 3= ).

Slide 7: Wrap Up: 👏Great Job👍

😁😁😁😁😁😁😁😁😁

Visuals: Review:

• Addition = Putting Together (+)

• Subtraction = Taking Apart (-)

• Image:

Speaker Notes:

"Pencils down. Great work today everyone. We practiced adding to and taking from. Please pass your papers to the front of the row."