| Course: Physical Science | Grade Level (s): 8th | 
| Content: Unit IV Motion // Measuring and Calculating d, t, v , & a. | Week: 15 | 
|  California Academic
        Content Standards emphasized:  1. The velocity of an object is the rate of change of its position. As a basis for understanding this concept, students know: a. position is defined relative to some choice of standard reference point and a set of reference directions. b. average speed is the total distance traveled divided by the total time elapsed. The speed of an object along the path traveled can vary. c. how to solve problems involving distance, time, and average speed. d. to describe the velocity of an object one must specify both direction and speed. e. changes in velocity can be changes in speed, direction, or both. f. how to interpret graphs of position versus time and speed versus time for motion in a single direction. 9. Scientific progress is made by asking meaningful questions and conducting careful investigations. As a basis for understanding this concept, and to address the content the other three strands, students should develop their own questions and perform investigations. Students will: b. evaluate the accuracy and reproducibility of data. d. recognize the slope of the linear graph as the constant in the relationship y=kx and apply this to interpret graphs constructed from data. e. construct appropriate graphs from data and develop quantitative statements about the relationships between variables. f. apply simple mathematical relationships to determine one quantity given the other two (including speed = distance/time, density = mass/volume, force = pressure x area, volume=area x height).  | 
    
| Key Ideas: speed, velocity, average, acceleration, | 
CLASS MEETING AGENDA/ ACTIVITY  | 
    |
MEETING 1  | 
        [1] Grade/Collect/Pass out new PS SKW [2] Start, "Some things just fall downhill...How fast did Jack and Jill fall down the hill anyway?" scientific investigation. | 
MEETING 2  | 
        [1] Science Festival Project Assignment Due. [2] Designing a procedure for an experiment/investigation [3] Finish "Some things just fall downhill...How fast did Jack and Jill fall down the hill anyway?" scientific investigation. | 
HOME SESSION AGENDA/ ACTIVITY  | 
    |
SESSION 1  | 
        [1] Make sure PS SkW has been started or is finished. | 
SESSION 2  | 
        [1] Work on PS SkW. [2] Start "Relationships in Motion: time, distance, speed, velocity, acceleration and graphic interpretation" a Scientific/Mathematical Investigation. (This may be a tough assignment for some students. Work smart, do what you can and what you can't ask questions about later! No worries!) | 
SESSION 3  | 
        [1] Work on PS SkW. [2]Continue working on "Relationships in Motion: time, distance, speed, velocity, acceleration and graphic interpretation" a Scientific/Mathematical Investigation. [3] Start designing the procedure for an experiment/investigation that has controlled variables, an independent variable and one dependent variable; due Week 16, first class meeting | 
RESOURCES  | 
        REMEMBER to check the FOCUS ON PHYSICAL SCIENCE reading list and keep all INTERACTIVE NOTEBOOK ENTRIES current !  | 
    
COMMUNICATIONS  | 
        
  |