Calvert-Lewin has two goals in seven appearances for England Under-21s and three in his last two games in an Everton shirt.
"Last week was a good week for him, scoring three goals," Schneiderlin told evertontv. “We know that he is a very good player, with good presence in the box. We needed him to score [against Huddersfield] and to produce a goal that could get us a point, which he did.
“That presence he has is useful when you are trying to break teams down. You need it either when you are playing on the floor or in the air.
“Against Huddersfield he was really impressive in the air. Strong players like that are very important when you are playing against a side that sit very deep.
“It is good for him to go away now on international duty [with England]. Hopefully he can come back and carry on scoring for us."