Walker has recently been introduced to the Reds’ first team, and he has made two substitute appearances in the Championship so far this season.
The 18-year-old made his debut for Forest as a substitute against Rotherham United at the City Ground on March 18.
The youngster came on as a replacement for Chris Burke in the 92nd minute of the encounter, which Forest won 2-0.
Walker replaced Ben Osborn in the 83rd minute in the 3-1 defeat to Norwich City at Carrow Road on Saturday.
Freedman has been hugely impressed with what he has seen of the teenager in training and told The Daily Mail before Saturday’s match against Norwich: “Tyler's a fantastic hard-working youngster.
“Never mind football this young guy is an absolute pleasure. He is in training first, he shakes your hand and is like a little sponge. He's a complete dream to work with…
“Working with him gets me up in the morning. To see a young guy like that so enthusiastic, willing to learn, take some criticism, really makes my job.
“He's got everything, he's got a touch, wants to get in behind and willing to do that. He's a wonderful finisher.”
Freedman has been in charge of Forest for less than two months, but it appears Walker has already made a huge impression on him.
The young forward is known for his combination of pace and power. He has an eye for goal and can move past defenders with ease, attributes which will help him succeed for the Forest first team in the coming years.
Walker is still quite raw and has a lot to do before he has establish himself in the first team, but it appears that he is eager to learn and work hard.
Given the fact that Forest are making a late push for the Championship playoffs, Walker may not get to start a league game anytime soon, but even being on the substitutes’ bench on matchdays is good for him at this stage of his career.