As a tuition teacher, I have to crack my brains for ideas on how to make learning English interesting and engaging. It's the holidays so kids wouldn't have the motivation to open their revision books. I have come up with 4 ideas. Unfortunately, I did not take pictures for the first idea.
1)Treasure Hunt
Have some of them to draw a map of their house or classroom or garden (wherever they may be at the moment), with a legend and all.
Then have them write English questions on papers and hide them all around the place.
Mark out the places where the questions are hid.
Another group will hunt.
After they answer a right question, give them a clue to where the treasure is.
This is good to teach students or your child the names of all the things in the house and also revise on all that you have taught them so far. I had my student write questions on tenses and different kinds of sentences. This activity also engages them to write sentences, making sure that their sentences are grammatically correct.
2) Stamping.
If mundane exercises are too boring, have them stamp out the answers.

Prepare your questions first.
Then make the stamps.
Cut out alphabets first.

Stick them onto foam or bottle caps. Anything solid.(Remember to stick them the other way around so when you stamp them, it is the right way round.)
For the ink, a creative way is to use bleach.
Put a paper towel onto a plate and drip some bleach on it until it is soaked.
Have them stamp out the correct answers when you're all ready!
Even if you do not have actual stamping materials, you can use things you normally find around your house! It also saves money! :)
3) Board Game.

Help the cat find its way to either of the 3 things at the bottom.
The black arrows on red circles are the normal way you should go.
If you answer a red arrow question correctly, you can point it to the next black arrow and move on from there.
But if you answer it wrongly, you have to go to a red arrow on a black circle question. And as you can see, no red arrows lead to either of the three things for the cat.
To go back to a black arrow, you must answer the red arrow question correctly.
Cut out circles and glue the arrows on them.
Use blu tag to stick the circles onto your paper / board.
This way, you can turn the arrows.
Use foam paper to make the cat (you can have any kind of animal you want).
To prepare the questions, first print out the questions.
Glue them onto either black or red paper.

Close them up with an arrow.
Have the student pick the random card of questions.
4) Make something and write down instructions for it.
Last but not least, I bought some clay for my students and have them make something.
Then they have to write down the steps for making them.
You can also ask them to make origami birds or planes or other artsy fartsy things. :)
This activity helps them to revise on conjunctions.
After the activity, have them write what they feel about the thing that they have just made!
I hope all these ideas help with making learning fun for your student or child. It sure did make teaching them more fun for me!
YOu can even use it to teach science or math or other subjects!