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Week 20: Jan. 22 - 26
2007/01/22, Monday, Science-10
GLEs: 2.1.1 Understand how to generate and evaluate questions that can be answered through scientific investigations. 2.1.2 Understand how to plan and conduct systematic and complex scientific investigations. 2.1.3 Synthesize a revised scientific explanation using evidence, data, and inferential logic.
Lesson: [Period 1] Students complete "Bodies in Motion" experiment and hand it in. [Period 3] Discussion on speed and how to measure it in class. Explain how Newton's 1st and 2nd laws are illustrated in "Bodies at Rest" and "Bodies in Motion." Students begin designing an experiment to determine "as an object moves down a ramp does its speed change or does it coast at uniform speed (speed is d/t)?"
Assignment: None
2007/01/23, Tuesday, Science-10
GLEs: 2.1.1 Understand how to generate and evaluate questions that can be answered through scientific investigations. 2.1.2 Understand how to plan and conduct systematic and complex scientific investigations. 2.1.3 Synthesize a revised scientific explanation using evidence, data, and inferential logic.
Lesson: [Period 1] Discussion on speed and how to measure it in class. Explain how Newton's 1st and 2nd laws are illustrated in "Bodies at Rest" and "Bodies in Motion." Students begin designing an experiment to determine "as an object moves down a ramp does its speed change or does it coast at uniform speed (speed = d/t)?" Students begin collecting data in class and will complete experiment tomorrow. [Period 3] To determine speed of an object over 1 dm interval students are determining the time it takes an object to roll 1 dm and then dividing the time and distance by ten to determine the speed per interval. Following this graph we are going to analyze the data and see if the speed changes, or if the graph and data collection may be obscuring some important aspect of motion.
Assignment: Complete graph. Have method (diagram and data table) for determining if the speed changes over the course of an object falling (going down a ramp); due tomorrow.
2007/01/24, Wednesday, Science-10
GLEs: 2.1.1 Understand how to generate and evaluate questions that can be answered through scientific investigations. 2.1.2 Understand how to plan and conduct systematic and complex scientific investigations. 2.1.3 Synthesize a revised scientific explanation using evidence, data, and inferential logic.
Lesson: Once students are finished, they should work on next
experiment: The next experiment is
for each pair of students (one pair per lab group-each pair collects and uses
one data set but each student must hand in diagram/table/graph) to use a meter
stick with string rails and marbles to measure the marbles speed during each
decimeter (10 cm) of the meter stick as it travels down the meter stick. In other words, they need to measure
time and distance for each dm the marble travels. They should have at least 9 measurements (0-10 cm, 10-20 cm,
20-30 cm, 30-40 cm, etc. Each
measurement ( ex. 0-10 cm) should be measured 3 times so students can determine
the mean speed (this helps eliminate experimental error.) “How” exactly they do this is partly up
to students.
Assignment: Complete graph of data; due tomorrow.
2007/01/25, Thursday, Science-10
GLEs: 2.1.1 Understand how to generate and evaluate questions that can be answered through scientific investigations. 2.1.2 Understand how to plan and conduct systematic and complex scientific investigations. 2.1.3 Synthesize a revised scientific explanation using evidence, data, and inferential logic.
Lesson: Use speed data to make next graph which, instead of distance/time, will be a speed/time graph (where time goes on the x axis.)
Assignment: Complete speed/time graph
2007/01/26, Friday, Science-10
GLEs: 2.1.1 Understand how to generate and evaluate questions that can be answered through scientific investigations. 2.1.2 Understand how to plan and conduct systematic and complex scientific investigations. 2.1.3 Synthesize a revised scientific explanation using evidence, data, and inferential logic.
Lesson: Measure average speed of a marble down a 1 m ramp that is 3 dm high at highest point. Then measure the acceleration over the length of the m in one dm intervals.
Assignment: Graph data and calculate speed and acceleration