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These covalent bonding ‘puzzle’ card manipulatives provide a hands-on method of creating covalent bonds and help students to visualize the single, double, and triple covalent bonds that occur between the various non-metals. My students seemed to find it much easier to draw the Lewis Dot Diagrams and ball-and-stick diagrams for different molecules when they had the options for electron arrangement in front of them.
To facilitate this activity, print one copy of the manipulative squares per pair of students. I laminated these sheets and cut apart the cards.
Print an activity sheet (double-sided) for each student. Quickly point out the examples at the top, stressing that the bond lines need to match up in order for a bond to work! The students should follow the example for the oxygen-oxygen bond to complete the remaining problems.
I suggest giving the students a chance to struggle a bit with the first one or two problems and then review the answers to those. Then, they will start to catch on and you can let them discover the answers to the rest with minimal prompting! They don’t need to know how to name the molecules, but I like to introduce them to the idea that the prefix ‘di-’ means two and the prefix ‘tetra-’ means four, etc. As and extension activity for early finishers, have them jump online and look up the names for the CH4 molecule (methane), the NH3 molecule (ammonia), and the others!
If you are teaching a unit on chemical bonding, you may also be interested in these resources!:
Thanks for looking!