I’m afraid I won’t be able to make a birthday cake.
You can have fun with the third graders and play group karuta with them. Of course they will be doing all the speaking.
Lay the card out on the table all face up. The first student looks at the cards and secretly chooses on. They must make a sentence I’m sure/I’m afraid, using the english on the card and also the EMOTION (lol).
The other students listen and try and touch the card first. The winner keeps the card as a point. The student speaking cannot touch the cards.
If your students are not up for that then you can just play shichinarabe (7 game) or uno.