The concept of halfway applies to a huge number of things in your life. When you are about to throw a frisbee you will want to hold it in the center or the halfway point. This concept of center holds a great deal of value for many things. It can help us balance things, like frisbee, it can be a point in time, it can also make things look right like making sure the rim of your hat is in the center. We will look at this concept from many different angles with students. These worksheets and lessons will help students learn how to accurately determine half of the length of an object.
Aligned Standard: 4.G.A.3
- Tree Split Step-by-Step Lesson- Imagine if you had the biggest axe in the world. How would you split the tree in two?
- Guided Lesson - We go past just visuals and start to find midpoints of number pairs.
- Guided Lesson Explanation - Arrows and number lines really help students understand this stuff well.
- Practice Worksheet - From sequences to bunnies to shirts and guitars; we cover it all.
- Halfway Between Numbers Practice and Lesson - This is for kids that have trouble after you move to independent practice. This should shore it up for them.
- Halfway Practice Worksheet - What number is halfway between these two?
- Determining the Halfway Mark Five Pack - We give you two numbers. You need to find the midway point of the two numbers in a straight sequence.
- Matching Worksheet - Find the middle number in a sequence.
- Answer Keys - These are for all the unlocked materials above.
This actually a pretty difficult skill for students to get. I suggest starting with the visuals and moving to the number sets.
- Objects Homework 1 - Remember, the two pieces must be of equal size. Divide the crown into two equal parts using a dotted line.
- Counting Homework 2 - Write down all the numbers those come in between the numbers 2 and 10.
- Objects Homework 3 - Divide the given watch into two equal parts by writing a dotted line.
I really tried to make these questions in such a way that you are required to think just a little bit harder.
- Practice 1 - Divide the given star into two equal parts by writing a dotted line.
- Practice 2 - Write the number that is halfway between the two numbers.
- Practice 3 - Divide the cat into two equal parts by writing a dotted line.
Math Skill Quizzes
I kept all the unique skills with their own topic for the quizzes because many teachers requested it that way. I had them mixed in the past; it didn't work well at all.
- Numbers Quiz 1 - We can move the line in many different orientations, but only one will make it equal on both sides. I like to think about folding both sides on to each other.
- Objects Quiz 2 - Remember, the two pieces must be of equal size. Divide the apple into two equal parts using a dotted line.
- Numbers Quiz 3 - Find the number which comes in the middle of this series when we divide it into two equal parts.
How to Determine Half of Something
Leaning quick mathematical skills is essential to establish a logical understanding of the subject. Thus, there are different skills that you want your students to learn such as a halving a number. When you are taking half of a number, you're basically dividing it by 2. However, you must keep in mind that not all numbers can be divided easily. There can be odd numbers or even decimal numbers; so, you must teach them how to half a number without taking much time or using a calculator. Here are two things that you must keep in mind when you are dividing an odd or decimal number.
Firstly, for an odd number, you can either subtract one or add one to make it an even number. For example, number 35. Here, we will subtract the number by 1 and it will become 34. You can divide it by 2 to get an answer 17. Now, the original number was 35, so you can divide the subtracted number (1), by 2 to get 0.5. You can then add 0.5 to 17 for an answer.
For a decimal number, you can similarly roundoff the number to the nearest ones or tens. Like, let's take 12.5 as an example. You can round it off to 13 and then you can divide it by 2 by the above method. You get an answer of 6.5. Now, in this scenario, you can divide 0.5 by 2 to get 0.25, which you can subtract from 6.5 to get an answer 6.25.
There are also many instances where you will need to determine the halfway through something. It can take on many different forms such as an object or a great distance of some kind. Say for example you were driving from the most populated city in America, New York City to the second most populated, Los Angles. This is approximately 2,800 miles long. This will take you about 45 hours off driving time to complete. Wouldn’t it be great to know when you are halfway? If not for anything more, just for a sense of accomplishment. Regardless of the direction you are travelling, when you pass the town of Prosser, Nebraska you are exactly halfway between those two cities.
When we apply this principle to an object, it reverts back to standard math. Measure the longest side (length) of the object. Take that value and divide it by 2. This will tell you the measure of the halfway point in that object.