L.O: To add a suffix to a root word.
What is a suffix? A suffix is a group of letters that you add on to the end of a root word to make a new word. Sometimes this can also change the meaning of the original word.
Today we are going to look at the suffixes -ment, -ness and -ful.
If the suffix starts with a consonant letter, it is usually added straight on without changing the root word. For example, "ment" starts with a consonant and so it can be added to the root word "enjoy" without changing it. Enjoy becomes enjoyment.
Try adding -ment, -ness or -ful to the following root words yourself.
sad
care
play
plain
Answers -
sadness
careful
playful
plainness
However, sometimes you have to change the root word before you add the suffix. For example, before you add -ment to the end of argue, you have to remove the e.
Argue becomes argument.
For some words, you have to change a letter before adding the suffix. For example, happy. To add -ness on to the end of happy, you have to change the y to an i.
Happy becomes happiness.
Now get someone to test you on these new words you have learnt today!
sadness
careful
playful
plainness
argument
happiness