I wanted to make my power point presentation an interactive and fun activity that would allow the kids to practice categorizing elements, compounds, and mixtures. We have been talking about properties of matter for a while and we are now starting to get into the meat of Chemistry with an introduction to how matter is classified. Soon we will explore elements and compounds in more depth.
Using the power point, we had a class discussion to introduce the topic. We went through the first few slides together. Each lab table was then given a set of large 4×6 index cards that are multicolored, each index card was two-toned, green on the front, red on the back, and blue on the front, and yellow on the back. The “E” stood for element, “C” for compound, “M” for mixture, and “?” for if they were not sure and could not decide. Groups of 3-4 worked well for this activity. I gave the index cards to two students in each group and they were in charge of holding the card up to show their answer.
I showed the first picture, and as a group, they had to decide if the item shown was made of an element, compound, or mixture. Once they decided on an answer, they were to hold up the corresponding card. Once everyone picked an answer, I revealed the correct answer and discussed why that item was an element, compound, or mixture. We didn’t keep score, but they were happy if they got an answer correct. The kids were very engaged and it was a simple way to make a power point presentation a little more interactive. We would then write down the answer into their notes under the corresponding column so they can see how the items are categorized.
After the ppt, we did the concept map together. I broke it into 1-2 minute chunks of time where they had to determine what went on the first level, then we would go over the answer. Another 1-2 minutes to decide what went on the second level, then discussed the answer, and so forth down the line until all the words were used from the word bank. This was a good closure activity to process the information from their notes and the activity.