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Do Now

Do Now. As you walked in, you were handed a piece of paper. QUICKLY, get started reading this and filling out the sections labeled “Do Now.” We are doing a lab that I didn’t originally plan, so we need to not waste time today! . Announcements .

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Do Now

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  1. Do Now As you walked in, you were handed a piece of paper. QUICKLY, get started reading this and filling out the sections labeled “Do Now.” We are doing a lab that I didn’t originally plan, so we need to not waste time today!

  2. Announcements • All classroom materials need to be with you by this Friday! • If you have problems getting the materials, talk to me about it during independent work. • Scientific Method test September 7th.

  3. Agenda • You are all insanely smart. • Group teaching: • Scientific questions • Independent, dependent, control variables • Cabbage lab

  4. Why? • It is important that we understand the cause and effect relationships between the independent and dependent variable. In this class, we will be performing a bunch of labs and it is necessary that we understand that we change the independent variable to effect the dependent variable.

  5. Scientific questions • We will write our questions: • How does ______________ affect _____________? • Where the first blank is the independent variable, and the second is the dependent variable. • What is the effect of _______________ on _______________? • Where the first blank is the independent variable, and the second is the dependent variable.

  6. Independent, dependent, control Variables • Question: Does brushing your teeth prevent the number of cavities you get? • Independent variable is the variable that you change. • IE: Brushing your teeth • Dependent variable is the variable that you measure. • IE: number of cavities • Control variables are all the other variables that remain constant throughout and might not be exactly stated. • IE: Eating after brushing your teeth, type and amount of tooth paste used

  7. Homework Procedure • I will assign homework weekly. • You will write your homework in your calendar for the week on Monday. You will need to get this sheet signed by one of your parents/guardians. • When homework is due, you will turn them in before class into your classes basket. • If you are in my first block class, your homework will go into the bin labeled “1st block.”

  8. Paper Passing • I don’t really feel like we need to go to in-depth on this. • However…. • When passing papers back, take one off the top and pass to the person behind you. • Do not fool around, you’re just wasting time and being petty.

  9. Pencil sharpening • I hate pencil sharpeners. • They’re loud, annoying, and just a pain. • I have a handheld pencil sharpener. You may raise your hand at any point if you need to borrow this in class. • Please try to get your pencils sharpened before class.

  10. Cause and effect relationship • Try and explain to your partner how the relationship between the independent and dependent variables is comparable to a cause and effect relationship. • When working in partners you must: • Stay on task! • Be respectful to each other! • Listen to your partner.

  11. Cause and effect relationship continued… • When you manipulate (change) the independent variable, it directly causes the change in the dependent variable.

  12. Practicing variables • In partners, figure out which is the independent, dependent, and control variables. • Does fertilizer make a plant grow larger? • Independent: Fertilizer • Dependent: Plant growth • Control: Sun light, water • Is a classroom louder when the teacher leaves the room? • Independent: Teacher • Dependent: Noise level • Control: Number of students, directions about whether they can or can’t talk

  13. Group Work • Raise your hand silently if you have ever played the game Dice, Dice, Baby. • RULES: • You need to get out one piece of paper between you and your partner and then split it in half. • YOU EACH SHOULD HAVE A HALF OF THE PAPER! • Do not write on the paper!

  14. Dice, Dice Baby • You will be getting 1 die between the two of you. • Partner 1 will roll the dice until they get a 6. • While partner 1 is rolling, partner 2 is going to be identifying the independent, dependent, and control variables for a series of questions. • When partner 1 rolls a 6, they will grab the pen out of the partners hand (GENTLY!). • This game can get intense fast. Let’s try not to hurt each other 

  15. Exit Ticket Identify the independent, dependent, and control variable for the following scenario. 1. You want to test whether the amount of sugar you eat in a day has a direct relation to the amount of energy you have in a day. What are the independent, dependent, and control variables?

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