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Welcome to Measurement! – Learning to measure things – What is measuring? – Measuring helps us compare objects – Measuring length and height – We find out how long or tall items are – Using a centimeter ruler – A tool with centimeter marks for accuracy | This slide introduces the concept of measurement to first graders. Begin by explaining that measurement is a way to find out how long or tall things are, using units like centimeters. Show them a centimeter ruler and point out the marks that stand for each centimeter. Ask the students if they have seen someone use a ruler before and what they measured. Explain that today, they will learn to use a centimeter ruler to measure objects around the classroom. Prepare to demonstrate how to align the ruler and read the measurement accurately. Plan a hands-on activity where each student will practice measuring items with a centimeter ruler.

Understanding Centimeters – A centimeter measures length – Part of the metric system – A system for measuring used globally – 100 centimeters in a meter – Like 100 pennies in a dollar – Centimeters on a ruler – We use it to measure small objects | This slide introduces the concept of measurement using centimeters. A centimeter is a small unit of length in the metric system, which is standardized and used worldwide. Comparing 100 centimeters to a meter can be likened to understanding 100 pennies in a dollar to make it relatable for first graders. Show students a ruler with centimeters and explain that it is used to measure the length or height of objects. Use real-life examples like measuring the length of a pencil or the width of a book to demonstrate the use of a centimeter ruler. Encourage students to ask questions and hold a ruler to familiarize themselves with centimeters.

Our Centimeter Ruler – What a centimeter ruler looks like – Understanding the little lines – Each small line represents one centimeter – Measuring length with the ruler – Use the ruler to measure how long objects are – Measuring height with the ruler – Use the ruler to measure how tall objects are | Introduce the centimeter ruler by showing a real or a large illustrated version of it. Explain that the ruler is used to measure how long or tall things are, which is important for many everyday tasks. Highlight that each small line on the ruler represents one centimeter. Demonstrate how to align the ruler with the edge of an object to measure its length and how to place it vertically to measure height. Encourage students to practice with real objects in the classroom. Provide a variety of items to measure, ensuring they have a hands-on experience with the ruler and understand the concept of measuring length and height.

How to Use a Ruler – Start at the end of the object – Align ruler with the object – Make sure it’s straight for accuracy – Read the number where it ends – The number at the object’s end is its length – Measure length in centimeters – Use the centimeter side of the ruler | This slide is designed to teach first graders the basic steps of measuring an object using a centimeter ruler. Emphasize the importance of starting the measurement at the 0 mark on the ruler, ensuring the ruler is straight and parallel to the object for an accurate measurement. Show them how to read the number at the end of the object to determine its length. Use simple language and demonstrate with a ruler and various objects. You can prepare a hands-on activity where each student practices measuring items with a centimeter ruler and records their findings.

Let’s Practice Measuring with a Ruler! – We will measure objects together – I’ll demonstrate measuring first – Start measuring from 0 – Make sure the edge is at the 0 mark on your ruler – Observe where the object ends – The end of the object points to its length | This slide is designed to introduce students to the practical aspect of measuring objects using a centimeter ruler. Begin by demonstrating the correct way to measure an object, emphasizing the importance of starting at the 0 mark on the ruler. Show them how to align the edge of the object with this starting point. Then, guide them to carefully observe where the object ends on the ruler, which indicates its length. Allow the students to practice with simple objects such as a pencil, an eraser, or a small book. Encourage them to share their measurements and discuss any discrepancies they may find. This hands-on activity will help solidify their understanding of measurement and the use of a ruler.

Measuring Fun with Centimeters! – Find 3 classroom items to measure – Use your ruler to measure in centimeters – Hold the ruler at the edge of the item, start at 0 cm – Record each item’s length – Share your findings with the class – Tell us how long each item was in centimeters | This slide introduces a hands-on activity for students to practice measuring objects using a centimeter ruler. Encourage the students to select a variety of items to measure, such as a pencil, an eraser, or a small book. Remind them to start measuring from the ‘0’ mark on their rulers and to align the edge of the item with this starting point for accuracy. Once they have measured their items, ask them to write down the lengths clearly. After everyone has finished measuring, create a sharing circle where each student can present their findings and discuss the different lengths they recorded. This will help them understand the practical application of measurement and improve their ability to communicate their findings.

Review: Measuring with a Centimeter Ruler – Understanding a centimeter – A centimeter is a small unit of length. – Using a ruler to measure – Place the ruler’s end at one object’s edge and read the number at the other edge. – The importance of measuring – Measuring helps us describe how long or wide things are. – Practice measuring objects | This slide is a review of our previous lesson on using a centimeter ruler for measurement. Start by reminding students what a centimeter is and show them a ruler with centimeter markings. Demonstrate how to align the ruler with the object being measured and how to read the measurement accurately. Discuss why measuring is a crucial skill, for example, to know if a bed will fit in a room or to buy the right amount of fabric for a dress. Conclude with a hands-on activity where students measure various objects in the classroom with their rulers, recording their findings to share with the class.

Class Activity: Measuring Scavenger Hunt – Let’s explore measurement – Find items: 1cm, 2cm, 5cm, 10cm – Look for small objects like erasers for 1cm, paperclips for 2cm, etc. – Partner up for the hunt – Use rulers to measure – Practice aligning the ruler starting at 0cm | This activity is designed to give students hands-on experience with measuring objects using a centimeter ruler. It will help them understand the concept of length and the practical use of a ruler. Before starting, demonstrate how to use a ruler, emphasizing the importance of starting at the 0cm mark. Divide the class into pairs to foster teamwork. Provide a variety of objects for them to measure. As they work, circulate to offer guidance and ensure they’re measuring correctly. Possible activities: one pair measures lengths of string, another measures classroom objects, and another measures drawings they’ve made. Encourage students to record their findings and share with the class to reinforce their learning.