Lesson Five: Precision and Accuracy

Engage: 1. Brainstorm with students what they know about precision and accuracy. Are they the same? Are they different? Why?

Explore: 2. Show students a video about precision and accuracy. Here is a link to a video: Video Resource on Precision and Accuracy

Explain: 3. Lead a class discussion and demonstration about the real-life application of precision and accuracy. Discuss examples where precision and accuracy are important, such as in scientific experiments, construction, and cooking. Explain the definitions of precision and accuracy: - Precision: The level of detail or exactness in a measurement. It refers to how close multiple measurements are to each other. - Accuracy: The closeness of a measurement to the true or accepted value.

Elaborate: 4. Provide students with rulers and various objects to measure. Instruct them to practice getting precise and accurate results using the ruler. Encourage them to take multiple measurements and compare the results for precision. Also, discuss how to ensure accuracy by aligning the ruler correctly and reading the measurement accurately.

Evaluate: - Reflection: Have students complete a KWL chart (What I Know, What I Want to Know, What I Learned) about precision and accuracy. This will assess their understanding of the concepts and allow for reflection on their learning.

Worksheet Resource: Worksheet on Precision and Accuracy

Plenary: Summarize the key points discussed in the lesson and ask students to share any questions or insights they gained from the activities.

Lesson Six: Precision and Accuracy Using a Thermometer

Engage: 1. Brainstorm with students different ways Ms. Robin can confirm if Lyndon has a fever. List all the possible scientific tools, quantities, and units of measurement that can be used.

Explore: 2. Discuss the scientific tool of a thermometer and the different units of measurement it can provide (Celsius, Fahrenheit, Kelvin). Have students list the units of measurement and their corresponding quantities.

Explain: 3. Show a video about converting between Celsius, Fahrenheit, and Kelvin. Here is a link to a video: Video Resource on Temperature Conversion

Elaborate: 4. Provide students with thermometers and various objects to measure the temperature. Instruct them to practice taking temperatures and converting the results between Celsius, Fahrenheit, and Kelvin. Provide conversion practice worksheets for additional reinforcement.

Evaluate: - Students will complete a worksheet on temperature conversion and manipulation. This will assess their understanding of manipulating temperature measurements and converting between different units.

Worksheet Resource: Worksheet on Temperature Conversion

Extended Activity: - Divide students into groups and assign each group a specific scientific instrument (e.g., ruler, scale, stopwatch). Instruct them to research and prepare a presentation for the next class. The presentation should focus on the instrument’s uses, limitations, and examples of precision and accuracy in its application.

Plenary: Summarize the key points discussed in the lesson and ask students to share any questions or insights they gained from the activities.