Do Now: How many species do you think exist at our field site? How many individual organisms do you think there are? How could we find out? After completing this this activity, I will be able to… NGSS Level 1 Level 2: all of Level 3: all of level 2 Level 4: all of level Practice 3 level 1 and… and… 3 and… Planning and Make an Explain why Explain sampling Design carrying out estimate based scientists use bias by comparing improvements to Investigations on a small sampling. estimates taken by the activity that sample. different groups. would lead to more accurate estimates. Once you have completed the activity, circle the highest level that you achieved. Goal of the Sampling Activity: Generate an accurate estimate of the number of total M&Ms by sampling only 3 sections of the site, using random and non-random sampling methods. Sampling Activity Directions: Pour the M&Ms out on the paper, distributing them across the sheet. Do NOT touch the M&Ms after they have hit the paper! Work with your partner to choose three squares that you want to sample. Write down the three squares you will sample and why you chose those squares on the sampling activity data sheet. Count the number of M&Ms and M&M colors in your three squares only and write the numbers for each square on your data sheet. Still don’t touch the M&Ms! Use your sample to estimate the total number of M&Ms on your paper. Record your estimate on your data sheet. Still don’t touch the M&Ms! Non-Random Sample: Square Why you chose the square M&M M&M Count Diversity (Optional)
Do Now: How many species do you think exist at our field site? How many individual organisms do you think there are? How could we find out? After completing this this activity, I will be able to… NGSS Practice 3 Level 1 Level 2: all of level 1 and… Level 3: all of level 2 and… Level 4: all of level 3 and… Planning and carrying out Investigations Make an estimate based on a small sample. Explain why scientists use sampling. Explain sampling bias by comparing estimates taken by different groups. Design improvements to the activity that would lead to more accurate estimates. Once you have completed the activity, circle the highest level that you achieved. Goal of the Sampling Activity: Generate an accurate estimate of the number of total M&Ms by sampling only 3 sections of the site, using random and non-random sampling methods. Sampling Activity Directions: Pour the M&Ms out on the paper, distributing them across the sheet. Do NOT touch the M&Ms after they have hit the paper! Work with your partner to choose three squares that you want to sample. Write down the three squares you will sample and why you chose those squares on the sampling activity data sheet. Count the number of M&Ms and M&M colors in your three squares only and write the numbers for each square on your data sheet. Still don’t touch the M&Ms! Use your sample to estimate the total number of M&Ms on your paper. Record your estimate on your data sheet. Still don’t touch the M&Ms! Non-Random Sample: Square Why you chose the square M&M Count M&M Diversity (Optional)
vs_independent_investigation_notebook_091217.docx