Sample Word List
subtract
subtraction
collect
collection
express
select
possess
protect
instruct
instruction
election
impress
expression
depress
process
Take a look at the sample word list.
What do you notice about these words?
They are base words or they have the suffix -ion added to them.
What do you think protection means?
(noun) something that keeps someone or something safe; the act or result of protecting
What do you think procession means?
(noun) a number of people or things moving forward in a line
How do you think we could sort these words?
By the base word ending - base -ct, -ct + -ion, base -ss, -ss + -ion
Let's practice sorting the words. Practice Sort
How does the base word sound change when you add -ion to -ct?
It changes to final t sound to /sh/.
How does the base word sound change when you add -ion to -ss?
It changes to final s sound to /sh/.