Welcome to another T
Let's practice the words first. We're going to contrast the two sounds. Remember to flatten your mouth and lengthen the sound as you pronounce /æ/. Listen carefully and repeat.
/e/ - pet, set, met, men, den
/æ/ - pat, sat, mat, man, Dan
/e/ - send, blend, pest, rest, ten
/æ/ - sand, bland, past, rash, tan
Now for the tongue twisters. Remember to exaggerate and start slow, then you can speed up as you get used to making the sounds.
1. Set a mat on the sand and get a tan.
2. Mend ten black pairs of pants for seven men in a trance.
3. Cashed his check, rented a tent he could mend and camped on a patch of grass all weekend.