Lesson Plan Template: General Lesson Plan
Learning Objectives: What should students know and be able to do as a result of this lesson?
As a result of this lesson students should be able to add and subtract decimals.
The learning objectives of the lesson are that the students will demonstrate the ability to solve addition and subtraction problems with decimals. Students will be able to add and subtract decimals and determine if they have enough money to purchase various items.
Prior Knowledge: What prior knowledge should students have for this lesson?
The students should be able to add and subtract whole numbers.
Guiding Questions: What are the guiding questions for this lesson?
- How is adding or subtracting decimals different from adding or subtracting whole numbers?
- What do you notice about adding and subtracting decimals that is the same as adding and subtracting whole numbers?
- What happens to the decimal point in the problems?
- Why do you think the decimal points need to stay lined up in the problem?
Teaching Phase: How will the teacher present the concept or skill to students?
The teacher will model the addition and subtraction of decimals by placing a classroom order.
The teacher will tell the class that there is a budget teachers can use to purchase classroom supplies, which is $75.
The teacher can then project a catalog on the screen or go to a teacher catalog online to show prices of various items.
The teacher will select some items (that will total less than $65) and ask the students if these items will be able to be purchased.
The students will see that the items have to be added together, than subtracted from the given budget.
Guided Practice: What activities or exercises will the students complete with teacher guidance?
Once the items are subtracted from the given budget, the teacher will ask if some other items can be purchased, allowing the students the opportunity to choose some items.
The students will add them and subtract them from the remaining budget (which the teacher left around $65).
By doing this the students will see that the prices need to be added and subtracted correctly so the purchases can be made.
Independent Practice: What activities or exercises will students complete to reinforce the concepts and skills developed in the lesson?
The teacher will pass out a restaurant menu for each pair of students, which has the menu items and the prices listed.
The students will be presented with the situation that they are going out with five (the number of friends can vary) friends and they have $50 (amount of money can be varied) to spend.
The students will need to go through the menu and determine what they can order to reasonably feed the amount of guests they have within their budget.
The prices of each meal will have to be added together and subtracted from the budget they have.
The students can have continued practice with these skills by writing down the items that they purchase when they are with their parents either eating or shopping. They can add the items together and subtract from a given budget as an ongoing assignment.
Closure: How will the teacher assist students in organizing the knowledge gained in the lesson?
When working on the board and modeling work the teacher will show the addition of the prices in black and the subtraction in red so the students can easily identify the operation that is taking place.
The process of the addition of some items together and the subtraction from the total budget will be displayed on the whiteboard for the students to see and refer to as needed.
After the completion of the activity, the students will be assessed with a final project that will have the students utilizing addition and subtraction of decimals.
They will use a menu to order not exceeding a given amount and calculating the change they will receive.
Teacher will project an addition and a subtraction problem dealing with money (so the decimal to the hundredths place is used) on the whiteboard and the students will solve the problem.
The teacher will observe the students' work and determine which students have an understanding of this concept and which students are struggling. Mistakes will be noted and grouped according to mathematical operation mistake or decimal mistake.
Feedback to Students
Feedback will be given to the students when the problems are solved and explained by a student in the class.
The teacher will call on students to demonstrate the solution to the problem on the whiteboard and give a justification for their solution.
Students will have the opportunity to critique their own work while the solution is being modeled and they can question the student or the teacher as to why or how the solution works. They will also be able to utilize the feedback in the group activity that will follow.